Javascript extension doesn't work

[full pose]

Hi,

I have photoshop panel which is working with PS 2018 but not with 2020. I cannot to run 2018 on my mac as I have new mac with Catalina. Script was prepared to work with 2020, but something went wrong. I attached info after try to open panel. Any idea? 

Thank you

Jacek

[Manan Joshi]

The error mentions that the extension has a faulty signature, did you check the validity of the signature? Maybe the signature has expired. You can use the zxpsigncmd utility to check the signature used to sign the bundle

-Manan

[full pose]

Hi Manan,

Thank you for respong, but I am afraid I don't know how to do this as I am extremely green with this and javascript. This extension was wrote by my colegue but iI don't have contact with him. I found zxpsigncmd and comand line which I need to use with description for every bracket but I don't know this data

ZXPSignCmd -selfSignedCert <countryCode> <stateOrProvince> <organization> <commonName> <password> <outputPath.p12> [options]

Thank you

Jacek

[Manan Joshi]

In order to check the signing status of the extension, you can use the following command

ZXPSignCmd -verify <zxp>|<extensionRootDir> [options]

an example of it would be

ZXPSignCmd -verify /your path to the extension folder

See the following for creating and signing your extension using a self-signed certificate

http://download.macromedia.com/pub/labs/extensionbuilder3/ccextensions.pdf

-Manan

[full pose]

Hi Manan,

I wrote like below attached screen grab (maybe syntax is wrong) and I got 

zsh: command not found: ZXPSignCmd

Thank you

Jacek

[Manan Joshi]

1. Make sure you are in the same directory where you have theZXPSignCmd placed
2. Use ./ZXPSignCmd instead of ZXPSignCmd
3. If the path to the extension folder contains space then enclose it in double quotes

-Manan

[full pose]

I have another extension which doesn't work with PS 2021 but work with PS 2018. So it's Adobe or Catalina? And of course I got same info "was not properly signed". 
Thank you

[full pose]

I downloaded ZXPSignCmd-64bit. Is it OK?