You are trying to add License keys manually from Locker > Licenses > Add License and hit an error "Downloading content from content repo failed."
In /var/log/vrslcm/vmware-vrslcm.log
you see these errors
INFO [pool-3-thread-41] c.v.v.l.p.c.l.t.ValidateLicenseTask - -- Starting :: Validate License Task.
INFO [pool-3-thread-41] c.v.v.l.p.c.l.t.ValidateLicenseTask - -- alias = ###################
INFO [pool-3-thread-41] c.v.v.l.p.c.l.t.ValidateLicenseTask - -- serialKey = XXXX-XXXX-XXXX-XXXX
INFO [pool-3-thread-41] c.v.v.l.p.c.l.t.ValidateLicenseTask - -- isVcfUser = false
INFO [pool-3-thread-41] c.v.v.l.p.c.l.t.ValidateLicenseTask - -- vmid = ###################
INFO [pool-3-thread-41] c.v.v.l.p.c.l.t.ValidateLicenseTask - -- tenant = default
INFO [pool-3-thread-41] c.v.v.l.p.c.l.d.h.LicenseUtility - -- Download DLF files. Download content location : /dlfRepo
INFO [pool-3-thread-41] c.v.v.l.c.c.ContentDownloadController - -- URLS for download :: [/dlfRepo]
INFO [pool-3-thread-41] c.v.v.l.c.c.ContentDownloadController - -- URLS for download with Ancestor :: false
INFO [pool-3-thread-41] c.v.v.l.c.s.ContentLeaseServiceImpl - -- Inside create content lease.
ERROR [pool-3-thread-41] c.v.v.l.p.c.l.d.h.LicenseUtility - -- Downloading content from content repo failed due to
java.nio.file.FileSystemException: /data/vm-config/symlinkdir/###################: Read-only file system
at sun.nio.fs.UnixException.translateToIOException(Unknown Source) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(Unknown Source) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(Unknown Source) ~[?:?]
at sun.nio.fs.UnixFileSystemProvider.createSymbolicLink(Unknown Source) ~[?:?]
at java.nio.file.Files.createSymbolicLink(Unknown Source) ~[?:?]
Aria Suite Lifecycle 8.x
Note: VMware Aria Suite Lifecycle restarts when you activate or deactivate FIPS Mode Compliance.