404 Fontawsome issue

We seem to be getting a large amount of 404 errors relating to the following

/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.1/webfonts/fa-regular-400.woff2
/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.1/webfonts/fa-solid-900.woff2

The fontawsome folder on our sites has 5.15.4 (not 5.15.1)
How can I prevent these errors or identify where the request is originating

Restart php service you are overoptimising and storing the PATH in memory restarting the service will force php to use the correct PATH