# Troubleshooting

We collect the most common troubleshooting of using Mattermost for your reference:

Instance troubleshooting is closely related to the Instance provider that is Cloud Platform, refer to Cloud Platform Documentation (opens new window)

# Database service could not be started?

Insufficient disk space, insufficient memory, and configuration file errors can make database service could not be started

It is recommended to first check through the command.

# restart mysql service
systemctl restart mysql

# view disk space
df -lh

# view memory rate
free -lh

# phpMyAdmin page access blank?

Please try another browser, such as chrome or firefox. If the phpMyAdmin can be opened normally before, and now appears to be incomplete or blank, it is recommended to clean up the browser cache, cookies and other information