Hi Gilbert,
Thanks for some clarification here. Before proceeding, having your system information would be very helpful. You mention not seeing the “help” tab in your site — if you deactivate Events Calendar Pro, does the “help” tab show up?
In any case, try using the steps described here and use them to post your site’s system info here → https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Let us know if you can find that information to post it here! (And if so, please be sure to not remove anything from the info, or omit anything—post the full, complete, un-edited system information if possible)
Thank you!
George