Close the applications involved, keep a copy of the configuration and history, and check with support that the folder in question belongs to the indicated component. Do not delete the FiscalNET folder and its data due to a DUDE or ZfpLabServer server issue.
This error occurs when the ZfpLabServer application is not functioning correctly.
Fiscalnet has the required version of ZfpLabServer integrated.
Error resolution
Stop FiscalNet and ZfpLabServer.
Uninstall ZfpLabServer from the Control Panel.
Delete the entire ZfpLabServer folder from Program Files.
Launch FiscalNET and check the connection settings.
It is also recommended that the FiscalNet and ZfpLabServer applications be run with administrator rights.
Right-click on the desktop icon -> Properties -> Compatibility -> Tick “Run this program as an administrator”
For ZFPLabServer, as an administrator, go to “C:\FiscalNet\Servers\Tremol” -> Right-click on the ZFPLabServer.exe icon -> Properties -> Compatibility -> Tick “Run this program as an administrator”