Fatal error at installation
Latest version of Wordpress.
Manual or automatic installation have the same result :
"Fatal error: Declaration of H5PWordPress::fetchExternalData() must be compatible with that of H5PFrameworkInterface::fetchExternalData() in /home/studiog/www/design/wp-content/plugins/h5p/public/class-h5p-wordpress.php on line 3"
It works on local wordpress, on my computer with MAMP.
Not the same website, but technically the same, just css, some plugins and content are different.
Do you understand what the error means ?
Thanks a lot for your help.