After recent upgrade, getting 500 server error at login

Hello, everyone. I am having a login problem now that I’ve done the most recent WordPress upgrade–my site is still visible online (www.beautyinvestigator.com), but I am unable to edit my site and get the 500 internal server error message. Does anyone know what can be done to fix this? I’ve been reading other posts on this error but am fairly new to WordPress and haven’t been able to find a solution yet. Thanks.

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Edited to add–it must have been a plugin issue, I went into my hosting site and removed recent plugins and now it seems to be working, fingers crossed ??