Required WebP shell functions are not available on the server

Website URL

testingthis.wuaze.com

Error Message

Required WebP shell functions are not available on the server. - WP Optimize

Other Information

I’ve read that these dependencies are crucial:

passthru
shell_exec
system
proc_open

What should I do?

Plugin devs’ docs

I don’t know about any other others, but I know that shell_exec is not available on free hosting. If its essential you may need to look at premium hosting

7 Likes

Functions that use/emulate command line functions are disabled on free hosting, so if that plugin requires those functions to be enabled, you can’t use it here.

8 Likes

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