KMC :: Internal Server Error Occured

After logging in KMC I got the following caption error.

I then ran 'kaltlog' after loging out of KMC and then logging back in and got the following errors.

2016-03-06 22:35:15 [0.000268] [69.88.44.114] [1554651178] [26] [API] [myReportsMgr::executeQuery] ERR: exception 'Exception' with message 'Invalid query: Table 'kalturadw.dwh_hourly_partner' doesn't exist' in /opt/kaltura/app/infra/log/KalturaLog.php:83
Stack trace:
#0 /opt/kaltura/app/alpha/apps/kaltura/lib/reports/myReportsMgr.class.php(1328): KalturaLog::err('Invalid query: ...')
--
#10 {main}
2016-03-06 22:35:15 [0.000163] [69.88.44.114] [1554651178] [27] [API] [kCoreException->__construct] ERR: exception 'kCoreException' with message 'Invalid query' in /opt/kaltura/app/alpha/apps/kaltura/lib/reports/myReportsMgr.class.php:1330
Stack trace:
#0 /opt/kaltura/app/alpha/apps/kaltura/lib/reports/myReportsMgr.class.php(871): myReportsMgr::executeQuery('?SELECT??DATE(D...', Object(mysqli))
--
2016-03-06 22:35:15 [0.000069] [69.88.44.114] [1554651178] [28] [API] [myReportsMgr::executeQueryByType] NOTICE: Invalid query
2016-03-06 22:35:15 [0.000193] [69.88.44.114] [1554651178] [29] [API] [KalturaFrontController->getExceptionObject] CRIT: exception 'kCoreException' with message 'Invalid query' in /opt/kaltura/app/alpha/apps/kaltura/lib/reports/myReportsMgr.class.php:1330
Stack trace:
#0 /opt/kaltura/app/alpha/apps/kaltura/lib/reports/myReportsMgr.class.php(871): myReportsMgr::executeQuery('?SELECT??DATE(D...', Object(mysqli))
--

2016-03-06 22:35:15 [0.000178] [69.88.44.114] [1554651178] [43] [API] [myReportsMgr::executeQuery] ERR: exception 'Exception' with message 'Invalid query: PROCEDURE kalturadw.calc_partner_usage_data does not exist' in /opt/kaltura/app/infra/log/KalturaLog.php:83
Stack trace:
#0 /opt/kaltura/app/alpha/apps/kaltura/lib/reports/myReportsMgr.class.php(1328): KalturaLog::err('Invalid query: ...')
--
#11 {main}
2016-03-06 22:35:15 [0.000102] [69.88.44.114] [1554651178] [44] [API] [kCoreException->__construct] ERR: exception 'kCoreException' with message 'Invalid query' in /opt/kaltura/app/alpha/apps/kaltura/lib/reports/myReportsMgr.class.php:1330
Stack trace:
#0 /opt/kaltura/app/alpha/apps/kaltura/lib/reports/myReportsMgr.class.php(871): myReportsMgr::executeQuery('?CALL kalturadw...', Object(mysqli))
--
==> /opt/kaltura/log/kaltura_batch.log <==
PHP Warning:  file_put_contents(/batch.pid): failed to open stream: Permission denied in /opt/kaltura/app/batch/scheduler/KGenericScheduler.class.php on line 97

Please help identify the issue and advise how to resolve these errors.