.piwigo_import_tree doesn't exist vs Cannot create album Access denied (code 401) but acc in website still create album

[dangnam1904yk]

o.p.remotesync.api.cache.LegacyCache - C:\Users\dangnam\Downloads\IMG\Community.piwigo_import_tree doesn't exist 08:27:51.921 [Thread-3] DEBUG o.p.remotesync.api.cache.LegacyCache - C:\Users\dangnam\Downloads\IMG\Community\B2.piwigo_import_tree doesn't exist 08:27:51.922 [Thread-3] INFO o.p.r.api.sync.SyncDirectoryWalker - Creating album for C:\Users\dangnam\Downloads\IMG\Community\B2 08:27:52.174 [Thread-3] ERROR o.p.r.api.sync.ConnectedWalker - Cannot create album for C:\Users\dangnam\Downloads\IMG\Community\B2 org.piwigo.remotesync.api.exception.ServerException: Access denied (code 401)

-> What is the solution here ?