Troubleshooting & help
AEM Forms provides a reference site package that you can quickly set up and configure. They help you explore and understand Forms features and functionalities through real-world use cases.
For details, see Set up and configure AEM Forms reference sites.
Direct upgrade from LiveCycle to AEM 6.2 Forms JEE is not supported. However, you can perform a multi-hop upgrade from your LiveCycle version to AEM 6.2 Forms. For details, see Upgrade to AEM 6.2 Forms.
AEM Forms releases hotfixes and cumulative fix packs from time to time. It is likely that the fix for your issue is available in one of the cumulative fix packs. We recommend you to review the cumulative fix packs release notes.
In addition, you can also reach out to AEM Forms community and post your questions out there. There are several experts looking to help.
If you still do not get to work around the issues, you can reach out to Adobe Support.
Review Discontinuation of NPAPI browser plugins and its impact. It explains features, workflows, and Forms scenarios that are impacted due to this change. It also suggests alternative approaches and workflows to mitigate disruptions.