Widget Config throws error on Linux installation

I have a new nopCommerce installed on a Linux server by a sys admin, I don't have direct access to the server. The site is running fine expect that I can't configure any of the Widgets. I can edit them but not configure them. The error thrown in the generic 'Internal Server Error'. The sys admin doesn't have a working knowledge of nopCommerce.

There are no error in the logs.

Any help would be appreciated.

RE: "no error in the logs."
Did you look in the System > Log?

In web.config, change stdoutLogEnabled to "true" to  get the error messages logged into the log file:

<aspNetCore requestTimeout="23:00:00" processPath=".\Nop.Web.exe" arguments="" forwardWindowsAuthToken="false" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" startupTimeLimit="3600" hostingModel="InProcess">

Thank you. That's something I wasn't aware of.

Let us know if you find / resolve the problem.  It would be helpful to the community :)