Login button doesn't trigger any response in FLPAM.
The workaround is to log in Fiori Launchpad, open a new tab in the web browser, and navigate to the Fiori Launchpad Application Manager (in the following example, it is assumed that sap-client is 100 and sap-language is EN):
SAP FES 2020 or above
SAP_UI 755 SP01 or above
KBA , CA-FLP-ABA , SAP Fiori Launchpad ABAP Services , Problem
About this pageThis is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP for Me (Login required).
Search for additional results
Visit SAP Support Portal's SAP Notes and KBA Search.