Hi,
The error refers to a missing file in the plugin folder. That means the file was either deleted by accident or is restricted from access.
If it is a missing file, then re-installing the plugin via the plugin manager will solve the issue:
– Open the plugin manager and Deactivate and Delete the plugin (your settings will remain the database)
– Download the plugin again from codecanyon to make sure the zip archive is not corrupted
– Install the plugin via the plugin manager (do not use FTP or other direct file transfer method)
– Activate the plugin
The error should disappear immediately.