Can somebody guide me on what could I do to solve this problem?
Thanks a lot in advance for your support. ;-)(

warning: Missing argument 3 for views_include_handler(), called in /hermes/waloraweb036/b1110/pow.ahaw/htdocs/m/sites/all/modules/views_periodic_execution/views_periodic_execution.module on line 86 and defined in /hermes/waloraweb036/b1110/pow.ahaw/htdocs/m/sites/all/modules/views/includes/handlers.inc on line 56.
warning: class_exists() expects parameter 1 to be string, array given in /hermes/waloraweb036/b1110/pow.ahaw/htdocs/m/sites/all/modules/views/includes/handlers.inc on line 58.
warning: class_exists() expects parameter 1 to be string, array given in /hermes/waloraweb036/b1110/pow.ahaw/htdocs/m/sites/all/modules/views/includes/handlers.inc on line 102.
warning: Unknown class passed as parameter in /hermes/waloraweb036/b1110/pow.ahaw/htdocs/m/sites/all/modules/views_periodic_execution/views_periodic_execution.module on line 86.