Resolved The FastCGI executable could not be found on PleskControlPanel (Port 8443)

[Roy Kollmann]

After an antivirus software somehow crashed the update-process of plesk this weekend we are unable to access the PleskControlPanel.
The message shown is:
The FastCGI executable could not be found

I looked at the folder mentioned in https://support.plesk.com/hc/en-us/articles/213397929 but the only file that resembles the mentioned one is "plesk-engine_mu011.msi". When I execute it it only gives me the option to "Remove the Plesk Engine from computer". The "Repair" and "Install" part are greyed out.

Is this what I should do? Please provide me the steps to resolve our issue.

Thank you very much!

 

[UFHH01]

Hi Roy Kollmann,

Plesk Knowledge-Base - articles are written by experienced Plesk server administrators and Plesk developpers, so when they suggest to install "an older PHP version", they have tested such a work-around, to solve possible issue(s).


Pls. keep as well in mind, that Plesk Onyx comes as well with the "Plesk repair utility", which is able to investigate and solve quite a lot of issues/errors/problems. Consider to use this utility, before you move on with additional resolutions for possible issues.

=> Plesk Repair Utility ( Official Plesk Onyx documentation - Administrator's Guide )​

 

[Roy Kollmann]

Hi UFHH01,

thank you for your quick answer. I already tried the approach with the repair utility which sadly did not resolve the issue. I also tried the autoinstall tool to update again, which did not resolve it too. But thank you for the suggestions.

I understand that i have to install "an older PHP version" to resolve the issue. What I don't understand is if executing the file "plesk-engine_mu011.msi" and therefore clicking the option "Remove the Plesk Engine from computer" is the right step to do so.
If yes - do I have to use that executable again afterwards? What exactly does it do? Why is mine named "plesk-engine_mu011.msi" and not "plesk-engine.msi"?

In my eyes the article is not complete which stops me from doing anything as every mistake can cost us multiple thousands of dollars (productive server).

 

[UFHH01]

Hi Roy Kollmann,

sometimes your have to REMOVE a software, before you can re-install it on Windows systems ( such situations may happen in case that an upgrade/update procedure destroyed/deleted part of the initial libraries or executables. There is absolutely nothing wrong in de-installing a software and re-installing it, which is sometimes even implemented in the whole procedure.

As you might notice, the additional "mu" - part indicates, that this file is a MICRO - UPDATE, which changes it's name, depending to the actual provided upgrades/updates. Pls. see as well: => http://autoinstall-win.plesk.com/PANEL-WIN_17.0.17/dist-msi-Microsoft-2003-i386/ to inform yourself about possible manual downloads of Plesk and it's components.

 

[Roy Kollmann]

Hi UFHH01,

thank you for your quick reply again.
I now started the executable and removed the plesk engine. When trying to executing it again i get "This installation file is intended for use only by plesk installer. It cannot be used independently". Same with the "plesk-engine.msi" from the page you provided.
What do I have to do now?

 

[UFHH01]

Hi Roy Kollmann,

I recommend to use command line with the "plesk-installer.exe", as described at:

=> Upgrading Plesk for Windows Using Installer Console ( Official Plesk Onyx - documentation )​

Pls. report back your complete steps and consider as well to include possible corresponding log - files, if you experience further issue(s)/error(s)/problem(s).

 

[Roy Kollmann]

Hi Roy Kollmann,

I recommend to use command line with the "plesk-installer.exe", as described at:

=> Upgrading Plesk for Windows Using Installer Console ( Official Plesk Onyx - documentation )​

Pls. report back your complete steps and consider as well to include possible corresponding log - files, if you experience further issue(s)/error(s)/problem(s).

The issue is now resolved after following UFHH01s steps. I also had to remove the "<handlers>" node out of the web.config of the controlpanel website.

Thank you very much!