System error when viewing themes


just installed Manager - am entering details so for so good - copied “plain” invoice to set up custom invoice and when selecting “view” of new invoice system crashes with

"The website cannot display the page
HTTP 500
Most likely causes:
The website is under maintenance.
The website has a programming error.

What you can try:
Refresh the page.

 Go back to the previous page. 

More information More information "

any advice ?

apologies if in wrong category, but was unable to send any questions in any other topic field

Problem with pdf & e-mail export

I experienced a similar problem in v 17.12.74 when trying to view themes under Settings, but got a different error message:

Internal Error
17.12.74 (Desktop)
System.NullReferenceException: Object reference not set to an instance of an object
  at ManagerServer.HttpHandlers.Businesses.Business.View.Get () [0x00277] in <4250c7e21cae4f248b2ff20d84f43497>:0 
  at HttpFramework.HttpApplication.ProcessRequest (HttpFramework.HttpRequest request, HttpFramework.HttpResponse response) [0x0040d] in <0f37c110977a40f38a690dc60f3e6532>:0 
  at ManagerServer.HttpApplication.ProcessRequest (HttpFramework.HttpRequest request, HttpFramework.HttpResponse response) [0x00566] in <4250c7e21cae4f248b2ff20d84f43497>:0 

I can view the Plain theme, but neither other built-in themes nor custom themes. However, they all work when selected while viewing transactions in other tabs.

I have put this issue into the Bugs category.

UPDATE: This is still a problem in v18.1.0. Also, the problem only occurs when viewing active themes. Inactive built-in themes can be viewed without any problem.


Thanks Tut – have just tried 2 different invoice themes in a “dummy business” set up, but same result as before system crashes…

18.1.0 Custom Theme
Need customization in customer's section / all other entries?

Should be fixed in the latest version (18.1.3)


solved - thanks