Solution:

It looks issue is due to older version of phpMyAdmin. The version of phpMyAdmin is older before the release of PHP 7.3 and it not properly compatible with that. In order to resolve, we recommend to upgrade the phpMyAdmin version. But you can make changes in sql.lib.php to temporarily resolve this error. All done. The error message should disappear now.

Issue with phpMyAdmin and PHP  Warning in   libraries sql lib php 613 count    Parameter must be an array or an object that implements Countable    TecAdmin - 26Issue with phpMyAdmin and PHP  Warning in   libraries sql lib php 613 count    Parameter must be an array or an object that implements Countable    TecAdmin - 22