Yes, I did, but the issue is still possibly the invalid value of the database prefix. I guess the ISS database table names are case sensitive, while the query it runs to check the talbes is not – which would explain the issue.
When any SQL command was executed based on the built in database prefix, they didn't work, as the database server was not able to find that database. I guess the actual database tables are lowercase prefix, while the prefix in the wp-config.php file has upper case characters as well, causing the problem.Best,
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