For anyone looking for a fix for this issue, unfortunately there is very little until a proper patch is released.
If your issue is related to lot events (which seems to be the most broken part of the game at the moment) then you might be able to use a mod from lilsimie to fix it, however it only works like a 3rd of the time for me. All we can do is wait for EA to release a patch, which they are actively working on.
There has been a HUGE amount of people sending in bug reports on this matter, and after my extensive research into the problem on my end I can tell you that somehow Lovestruck is causing events to duplicate themselves, likely due to a change in the regular date event and the new date event causing override issues, though I am not 100% sure about this specifically. Relaunching your game will not resolve the issue every single time, and often may just serve to make the issue worse. For the time being, just try to travel to a different lot that likely doesn't have a lot event and try the other lot later when the event might not populate.
This might not be a super easy fix, so it might take a little longer for EA to develop a patch that covers ALL issues at once. Though its very likely their very next patch will at least SOMEWHAT mitigate this issue, seeing as it is actively affecting the amount of active players.
