Server problems- Can't walk through doors? (world edit is also acting strange)

[Tacogalaxy]

Hey! Having some problems on my server all of a sudden.

I left the game and didn't play it for a day and now when I try to walk through most doors, placed by either me or others, the game glitches and won't let me through...

I'm not sure what has changed over a day to make this issue happen all of a sudden

 

Also, it could be that it's not related at all, but world edit won't let me copy/cut from the 'selwand', it instead gives me a Java error code. (java.lang.NullPointerException: null) 

I've restarted the server and my PC multiple times but I have the same two issues on every try

Any solutions, thoughts or advice would be appreciated, thanks  

[Spiderlogical]

Moved to Community Support. Please post in the correct category next time.

[nicholxs]

What version are you running? What versions does the server support? What plugins do you have?

Also, about the 'door glitch', pretty sure that's a visual glitch caused by the client where it thinks the door is opened but is really closed. Have you tried opening/closing/replacing the door? If you have, could you please record a video of it happening, as it will be easier to help you.