Troubleshooting

Network connection

Ensure that your Node is visible by the other nodes within the network.

You can check it by sending ping message from your local machine.

ping YOUR_NODE_PUBLIC_IP

Error parsing app.toml

If your crudini version is below 0.9.3, you might face the following issue:

Error parsing ~/.core/coreum-mainnet-1/config/app.toml: File contains parsing errors: <???>
[line 104]: ]

Please update your crudini version to 0.9.3 or open app.toml and replace next lines:

global-labels = [
]

with

global-labels = []

Validator missing blocks

In order to check your validators uptime you can use the following resources:

• Validators.info
• Mintscan

You should aim for your validator to have < 95% uptime. In case your validator has > 95% uptime you should check the following:

• Check if your validator machine has enough resources according to the following doc You should make sure that your machine uses NVMe SSD disk.
• Check if your storage solution is fast enough. Install htop application on your server and check if a lot of time is spent doing iowait operations. If so, you should consider upgrading your storage solution.

In case you are still unable to resolve this issue you can (join our discord server)[https://discord.com/invite/VgkhYeWmTd] and ask for help there.