Thanks, the error has disappeared now. However, I see the following in debug log.
ArrayObject Object
(
[storage:ArrayObject:private] => Array
(
[17:28:19_ACTION__FUNCTION_] => Array
(
[0] => Failed.
Query: ALTER TABLE <code>cleantalk_sfw</code>
ADD COLUMN <code>id</code> INT(11) NOT NULL AUTO_INCREMENT FIRST,
ADD PRIMARY KEY (<code>id</code>);
Error: Duplicate column name 'id'
)
)
)
