App error messages

From DeFiChain-Wiki
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We distinguish between wallet bugs and error messages. Bugs are errors that represent a serious problem and must be reported to the developers. Error messages are errors that can be bypassed and solved by the user with a different behavior. If you have a technical problem, please check first if your problem is already described in the error messages and if there is already a solution for it. If your problem is not described in the error messages, please create an issue entry on GitHub. How to submit issues for DeFi app

There is a community suggestion on how best to use the DeFi app. Please read this test first to better understand the topic. Suggestion for using the DeFi app

Insufficient Fund

Insufficient Funds Error

Error Message

Some users are facing the error message Insufficient funds after they made some changes like

  • Swap Coins in the DEX
  • Add or remove Liquidity
  • Sending DFI or token to another address

One example is shown on the right side

getbalance command

Reason for the Error

The main reason for this error is not having enough DFI coins (UTXOs) to pay the Fees of the Blockchain in your wallet.

Unknowing users could mean, that they have enough, because the DFI-wallet in the App shows a high enough amount. But this number is a mixture of coins and tokens. You get Token from the DEX and Liquidity-Mining, but you need Coins to transfer them to an Exchange or pay for fees.

So, the first thing is checking the available coin amount in your wallet. Go to the console and execute the command getbalance


If your wallet shows less than 0.01DFI, then you don't have enough DFI in your wallet to do anything on the DefiChain. The only way to solve this is sending DFI from outside your wallet to one of the included addresses.

Node disconnected

Error Message

Node disconnected Error

The error message Node is disconnected is shown while the wallet is synchronizing. Most of the time the wallet is already synchronized up to ~90%-95% when the error occurd.

Reason for the Error

There are different reasons which can lead to this error. You can distinguish between the following different types:

  1. Wallet synchronized normally up to 80%-99% until the error message is shown: That's the most common type, which is a RAM problem. In this case the wallet needs to much RAM to synchronize.
  2. Wallet does not synchronize and the error message occurd with 0.00% synchronization: Probably a network error


Solution to solve the different reasons for this error message:

  1. There are two different solutions for the first type:
    1. Activate the "ReIndex after saving" option in settings to restart the synchronization and activate the button "Delete peers and blocks" to clean the old block files.
    2. Start the wallet; wait until the wallet is synchronized up to ~90%-95% and shut the wallet down normally (the error message must not occur up to this moment); after that you can restart your wallet (repeat the steps until the wallet is synchronized. You can check the RAM usage of your PC to know the perfect time to shut the wallet down again)
  2. For second problem type you can try the following solutions:
    1. Check your firewall settings
    2. Check your network settings (connect with a private networt instead of a public network)
    3. Check your Antivir program

No help found? Go to Debug.log

App stuck when starting

Before you try anything else. Restart the computer and see if the problem is solved.

Version 2.3.1

There is a problem with version 2.3.1

If the app is not installed as an update, but the first time on a new system, then the blockchain folder is not created and the app cannot start.

The problem and the fix is documented here.

Other errors that also occur with other versions

Error Message

Your app might be stuck in an endless loop when you want to launch it. Trying to launch it via the console might display request failed with status code 500. Sometimes, you might also get an unable to start blockchain error upon launching the app.

Unable to start blockchain error message

Reason for the Error

Most likely it is a memory (RAM and/or disk space) issue.


Here are a couple of steps that might help:

  1. Quit the app
  2. Close unneeded open programs
  3. Open a system monitor program (Task Manager, Activity Monitor), keep monitoring your RAM utilization
  4. Make sure you have enough disk space available (more than your RAM size), free up enough so that the app can create a swap file if it runs out of RAM
  5. Disable and enable your network connection, possibly use another one temporarily
  6. Try again

If that does not help, try launching the app with the -reindex parameter from the command line.

Still not working? Here are some more experimental steps:

  1. Create a backup of your wallet.dat file (MacOS: ~/Library/ApplicationSupport/defi/wallets), preferably of the whole defi folder to another drive
  2. Remove all .dat files in the blocks folder (MacOS: ~/Library/ApplicationSupport/defi/blocks). Try again.
  3. Downgrade to the last version that worked for you here. Try again.
  4. Delete all wallet data from the defi folder, start the app again, then quit it. Now the folder structure should have been created again. Copy over wallet.dat from your backup and launch the app again.

Everyting failed so far? Let's start from scratch. You'll need for mnemonic seed for this.

  1. Delete app data (section above), uninstall defi-app entirely.
  2. Reinstall a version you think might work (either an older specific one or the latest)
  3. Launch the app
  4. Recreate the wallet from mnemonic seed.

No help found? Go to Debug.log

Please wait until your transaction has been added to the next block before proceeding with a new transaction.

Problem description

Error: Please wait until your transaction has been added to the next block before proceeding with a new transaction.

It is not possible to add liquidity to a pool pair.

The problem appeared for the first time in version 2.3.0.


The problem is probably caused by the fact that coins are stored on old and new addresses. It seems that the app is overwhelmed with taking coins from these different addresses together and using them in one transaction.

Workaround: created a new address and then transferred each coin and also the LM pairs to this new address using a normal transaction. After that, everything went back to the way it was before.

I appreciate feedback and additions to this text.

No help found? Go to Debug.log

Corrupted block database

Corrupted block database

Some users report that this error message occurs again and again. Afterwards, the entire blockchain has to be reloaded, which is very tedious. The cause of this problem lies in the incorrect termination of the DeFi app. It is important that the app is always shut down correctly.

As a remedy, it is recommended to work with backup solutions. Then the entire blockchain does not have to be reloaded, but only the blocks after creating the backup.

Fullnode#Create and use backup for blockchain data

I cannot find the AppData or Library folder

Here you can find an explanation to show hidden folders like Library or AppData.

Show hidden folders

My backup file was deleted with the update

When installing an update, some folders are overwritten. On Windows these are the following folders:



If the backup was stored in one of these folders before the update, it was most likely deleted during the update.

To avoid such problems, it's best to read our wiki recommendation on how to use the DeFi app safely.

Suggestion for using the DeFi app

No data found

Problem: The app cannot be started. Error message "No data found"

Here's what you can try: Delete .defi

If it did not work, we can only recommend the following:

  1. Delete all
  2. Reinstall DeFi App
  3. Run Defid file

After that, the app can be started normally and is installed correctly.

The team is working on a professional solution!