page builder not working due to appointment plus plugin

I have a paid theme wplms. It was running fine. when i installed appointment plus plugin it ran fine for 2 days but now the following come up:
1. the wordpress admin panel sometimes doesnt load, or loads half or loads slow.
2. cannot edit pages.
3. page builder sometimes works just fine...sometimes does not get enabled.
4. my website also sometimes loads half.

i have tried uninstalling all the plugins and re activating it one by one but same problem.

i am just too frustrated.

kindly let me know how do i give you access to my site admin panel through the wpmu dashboard so you can find a final solution for my problem.

desperately brother waiting for your reply