Nextcloud App "Bookmarks" will not start, error message: "The library gmp is not available."

NethServer Version: NethServer release 7.6.1810 (final), with latest Nextcloud installed via SoftwareCenter
Module: Bookmarks 2.2.0 (installed inside Nextcloud)

The nextcloud App “Bookmarks” will not start, this message is received: “The library gmp is not available.”

Any idea how to succesfully install?

Thanks, Rob

yum install rh-php72-php-gmp
systemctl reload rh-php72-php-fpm

then install bookmarks app


Appreciate the help!
It worked !!!