First of all thanks for your plugin "job manager". It is useful. I installed it and made its Turkish translation via by translation editor.But I have problem of inode overrun on my hosting service. So I had to delete some plugins. Then I realized that deleting the directory of job-board in the modules directory (/mod) after deactivating leaves some issues back. After deleting, I saw it in the plugins but in pink background in a situation that cannot be activated or deactivated even leave the remains, activating section.

Your hosting service program isn't right. You need to change the server with a better hosting program. We have our site hosted at Hosting Services There the inodes overrun is never a problem because they offer unlimited space and file counts.

I will consider your suggestion. But my problem is a bit different. Regarding your plugin, after deactivating the plugin and deleting the plugin directory via cpanel, I noticed that it could not be completely removed from the plugin page in the administration. It says "Cannot be activated. Missing composer.json for plugin ID... " on a pink background. How can remove it?