I upgrade on php7 and error:
[Mon Apr 25 12:01:33.691807 2016] [:error] [pid 6469] [client xx.xxx.xxx.xxx:52289] PHP Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /home/html/web.com/public_html/_sub/ad/lib/OA/Dal/Delivery/mysql.php:53\nStack trace:\n#0 /home/html/web.com/public_html/_sub/ad/lib/OA/Dal/Delivery/mysql.php(177): OA_Dal_Delivery_connect('rawDatabase')\n#1 /home/html/web.com/public_html/_sub/ad/lib/OA/Dal/Delivery/mysql.php(165): OX_bucket_prepareUpdateQuery('rv_data_bkt_m', Array, true, 'count')\n#2 /home/html/web.com/public_html/_sub/ad/var/cache/web.com_mergedDeliveryFunctions.php(200): OX_bucket_updateTable('data_bkt_m', Array)\n#3 /home/html/web.com/public_html/_sub/ad/www/delivery/lg.php(2776): Plugin_deliveryLog_OxLogImpression_LogImpression_Delivery_logImpression(3, 3, true)\n#4 /home/html/web.com/public_html/_sub/ad/www/delivery/lg.php(2144): OX_Delivery_Common_hook('logImpression', Array)\n#5 /home/html/web.com/public_html/_sub/ad/www/delivery/lg.php(3244): MAX_Delivery_log_logAdImpression(3, 3)\n#6 {main}\n thrown in /home/html/web.com/public_html/_sub/ad/lib/OA/Dal/Delivery/mysql.php on line 53, referer:
Please help.