A fatal MySQL error occured.

Query:
DELETE FROM pmd_sessions WHERE id='b915c439setpkaeftm7k9g85a0'

Error:
(1290) The MariaDB server is running with the --read-only option so it cannot execute this statement

A fatal MySQL error occured.

Query:
REPLACE INTO pmd_sessions VALUES ('b915c439setpkaeftm7k9g85a0','',1516778079,'1a9b79c21206631125f840432b9a0890')

Error:
(1290) The MariaDB server is running with the --read-only option so it cannot execute this statement