There is no such case in the config that they tried to open
Decision:
1) The correct name of the case in the config
2) The correctness of writing the case in the team

You tried to open the case sales menu, but there is no such case in the DonateCase plugin
Decision:
1) Does the case exist or is it correctly named in the cases folder of the DonateCase plugin
2) Did you write the name of the case correctly in the plugin config

The plugin cannot get information about the new version of the plugin
The Forum (Spigotmc.org ) does not respond and does not provide information about the version
Decision:
1) They will wait for the forum to be fixed
2) Check your internet connection

The plugin does not allow you to open the menu if you have created more than 6 cases in the menu
Decision:
1) Remove unnecessary cases
2) Buy the premium version of the plugin without restrictions (in the VK group)

The plugin does not allow you to open the menu if you have more than 8 commands in some case when you click on the sale
Decision:
1) Remove unnecessary commands
2) Buy the premium version of the plugin without restrictions (in the VK group)

Error loading the MySQL driver or creating the logs table
Decision:
1)Check the database
2) Contact the developer

Error closing database connection
Solution:
1) Contact the developer