You can report your problem via the Support App "Nero KnowHow Plus". Download the application from here and follow the instructions of the application.
Report problems in the Nero software
Start the new "Live Guide" and report the problem using the "Report Problem" function.
Nero Knowledgebase
In the Nero Knowledgebase you can find additional help and information on older Nero products from Nero 6 through Nero 2016. Click here to access the database