Classi press plugin can't be installed.
I tried to install ClassiPress plugin 4.1.4 and 4.1.5 today but everytime I try to install it I get this error:
Installing Plugin from uploaded file: classipress-4.1.5.zip
Unpacking the package…
Installing the plugin…
The package could not be installed. No valid plugins were found.
Plugin installation failed.
what is wrong?
- - - Updated - - -
I use WordPress 5.3.2