I am having an issue with Simple Optimizer on one of my servers. I suspect it is something server related because the plugin fails on every site on this machine but it works fine on the sites I have which are hosted elsewhere. I get the following errors. (there are more but basically just repeats). It used to work fine and now all the sudden it seems to break. Not sure what changed to cause this problem. Any suggestions?
Warning: mysql_query(): Access denied for user 'xxxxxx'@'localhost' (using password: NO) in /home/xxxxxxxx/public_html/wp-content224451/plugins/simple-optimizer/simple-optimizer-tools.php on line 121
Warning: mysql_query(): A link to the server could not be established in /home/xxxxxxx/public_html/wp-content224451/plugins/simple-optimizer/simple-optimizer-tools.php on line 121
Access denied for user 'xxxxxxx'@'localhost' (using password: NO)
Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in /home/xxxxxx/public_html/wp-content224451/plugins/simple-optimizer/simple-optimizer-tools.php on line 123