Plugins are not visable, can't update WP version?

Can you see the plugins on the network admin? wp-admin/network/plugins.php ?

Also, try a manual upgrade. Blank page is usually a PHP error, which could be a plugin incompatibility.

I can’t see the plugins on the network admin either.

How do i manually upgrade, do I do it from my host cpanel?

What DO you see on the network admin plugins page?

Manual upgrade: https://codex.www.ads-software.com/Updating_WordPress#Manual_Update

I just see 2 plugins and the rest just aren’t there?

look on the server – are they in the /plugins/ folder with the other two?

Yes all the plugins are there…

Screenshots?

What plugins do you have installed?
When did the problem start?
Did you install a bunch of plugins at once or one at a time?

No never installed several at once and I have no idea when this started because it was noticeable until I tried to update WP version. I think I will delete some of the more recent plugins from the server and see which one may have caused the problem. Not sure what to do if that doesn’t work, I am really nervous about manually upgrading, my entire business relies on this site and it would be a disaster if it was down!

Andrea I don’t know how to do screen shots ??

For screen shots you can use this utility:
https://sourceforge.net/projects/greenshot/