How do I remove folders from Plex???

[Draconis2k14]

Hi, I have deleted a couple of items from my drive but the thumbnail for those folders is still there, albeit with a trash can icon on it???
How do I remove it from Plex?

Thanks

[brucethevideobug]

Empty trash.

[OttoKerner]

https://support.plex.tv/hc/en-us/articles/202606363-How-do-I-delete-something-from-my-Library-

[Draconis2k14]

thanks