Cannot install plugins on wordpress

[Ergastolator1]

Some PHP extensions on the PHP upgrade are missing, as reported from this topic:

Website / PHP issues following PHP upgrade

Starting last Wednesday, iFastNet has begun upgrading PHP 7 on the free hosting platform. Instead of PHP 7.3 which we had before, the servers will now be upgraded to PHP 7.4.8. PHP 7.4 was released half a year ago and is the newest stable version of PHP. It brings many bug fixes and performance improvements. Some of these bugs have been seen by frequenters of this forum as well, like the issues accessing Google services due to SSL errors, and the security problem reported last week. However, i…