Impossible to use the Marketplace Install Plugin Tab


I installed Matomo on my wordpress through the plugin and everything was going well with it.
I bought the Search Engine Keywords Performance plugin but failed to install it.
I can add the key in the ‘subscription’ tab but I can’t have access to the Marketplace Install tab.
It is always showing up the following message:
There has been a critical error on your website. Please check your site admin email inbox for instructions.

Any idea where this error can be coming from?

Hi there,

Can you please share some screenshots of this issue at