plugin not work

Hello. Paid for plugin, after upload on server i get notify from console 

Quote

Unable to find main plugin class: Backpacks
No previous version to rollback plugin: Backpacks

Trying to delete all files, reload plugin, but it not starting. Can you help me please?

Backpacks isnt mine, make sure you remove the other backpack plugin and try redownloading BackPackPro incase the file has goofed. Just dropped it onto a dev and shes loading... so its got to be something silly

Thank you. Solved

Changed Status from Pending to Closed