After recreation of "File storage" objects, the Front End doesn't work anymore, "online" link points me here.
In BE "fileadmin" folder is browserable, we could read/download files.
Anyone experienced such problem ?
Answer by Hubertus Golf helped me : https://forge.typo3.org/issues/62489
problem:
if you have files in table sys_file with a storage, that does'nt exist, TYPO3 throws an error.
solution
change field uid in sys_file_storage or field storage in sys_file.