Resolved Could Not save configuration #1142 - INSERT command denied to user 'pma_xxxxxx'@'localhost'

[JohnnyU]

After upgrading to Plesk 18 got this error message every time i tried to open a db in phpmyadmin:

Could Not save configuration
#1142 - INSERT command denied to user 'pma_xxxxxx'@'localhost' for table pma_userconfig

Solved by logging out of phpmyadmin like described here: log out of phpmyadmin

#1142 - SELECT command denied to user ''@'localhost' for table 'pma_table_uiprefs'