I bet you could google that within 10 seconds (thats the time I needed, because I was too lazy to write it down): https://serverpilot.io/docs/ho…ll-the-php-ssh2-extension .
How dare you... By answering such way, you just show how some people are lazy... I like that 
Nuxwin, come out of this body ...
Good morning,
With the latest i-MSCP stable release, PHP 7.3 isn't available without the PhpSwitcher plugin. There if no way to set the PHP 7.3 version the default PHP version when creating a new customer account or domain/subdomain through an existent account. However, once the PHP 7.3 version, either the packaged, or compiled version, is registered in the PhpSwitcher plugin, your customers can select it through their PhpSwitcher interface.
With the next i-MSCP version, which isn't ready for production yet, PHP 7.3 will be the default PHP version. There is also a feature request opened on the PhpSwitcher project (private repository) to let the sysadmin choose which PHP version must be the default one.
Dear community,
A new version of the PhpSwitcher plugin has just been released:
Version compatible with i-MSCP Serie ≥ 1.5.3
Once connected on our forums, you can purchase this plugin at https://i-mscp.net/index.php/PaidSubscriptionList/
Documentation is available at https://wiki.i-mscp.net/doku.php?id=plugins:phpswitcher
CHANGELOG
Thank you for using our plugins.
I'm using the version downloaded from the Github. I gather is a "free" version?
No, it's a version that is not developed, nor supported by us, and not up-to-date. We'll contact the github team soon about this version which is based on a non-free work and thus, which is not legal.
Thread closed.
About which plugin you're talking? You're not a customer so you cannot have our LetsEncrypt plugin. With our LetsEncrypt plugin, registration of the LetsEncrypt account is automatic...
I has found one domain September ssl expired. But it's update failed unit to Oct. I has report to bug tracker.
Well, you don't provide us sufficient information. As always when you're reporting an issue with a plugin, you need provide us with the following information:
There can be some failures time to time due to the fact that the Let's Encrypt infrastructure can become unreachable and so on... but generally, those issues are solved in the next minutes. That's why the plugin automatically retry for the pending tasks every hour (here, the renewal tasks). Now, without the logs, we can't say anything more. There can be a bug in the plugin itself but it is difficult to say what's going on without further information.
Thank you for your understanding 
NO SUPPORT
=
! ! ! Thread closed ! ! !
Good morning,
There is normally an automatic retry every hour. You can create an issue on our bug tracker for the notification feature.
Funny.... Can you explain us why you commented the Ondrej Sury repository lines and the MySQL repository lines in your /etc/apt/sources.list file? These repositories were added by i-MSCP and if you remove then, you cannot expect that all work as expected. Please, uncomment these repositories in your /etc/apt/sources.list file. Also please, remove the following stanza in the /etc/apt/preferences.d/imscp file:
Then, once done, execute:
Finally, retry...
Thread closed as this is not a bug but simply the result of a "sysadmin" that do all and anything by closing eyes 
