Great plugin but for a longest time I've been seeing these two errors reported in my logs by proplayer and only proplayer:
[14-Oct-2013 13:05:03] PHP Warning: mysql_pconnect() [function.mysql-pconnect]: User nanowisd_wrd1 already has more than 'max_user_connections' active connections in /home4/nanowisd/public_html/nwblog/wp-content/plugins/proplayer/playlist-controller.php on line 19
[14-Oct-2013 13:05:03] PHP Warning: mysql_select_db(): supplied argument is not a valid MySQL-Link resource in /home4/nanowisd/public_html/nwblog/wp-content/plugins/proplayer/playlist-controller.php on line 20
The errors don't seem to be related to using proplayer.
I'm using version 188.8.131.52.