Deleted Plugins still display in WordPress Admin Panel and FTP Files

Hello.

I have several plugins which I deleted from the WordPress Admin Panel. They were not displaying in the database but are displaying in the Wp-Content/plugin folder . When I open the folder the ownership and permissions are overlapped. When I tried to delete the specific plugin from the plugins folder it caused the website to have fatal errors and crash. or the most recent pages I worked on would display blank and white. I restored the website from a backup and realize I must have a bad back up. The plugins display in the WordPress Admin panel. When I try to deactivate them. The website hangs and doesn’t load.

When I check the database tables there is no record of the plugins but they files do display in the ftp file folder. Sometimes I get a message that the file does not exist even though I am looking at it.

I am concerned about breaking the website and loosing the content and data but it seems as if some of it is tied to plugins that do not exist in the database. Trying to remove the “deleted” plugin causes the website to crash. I would rebuild the website from scratch but we recently purchased more storage space and I can’t transfer it to a new wordpress site within Network Solutions. Any feedback and help is greatly appreciated!!