Got this message today (Ubuntu 18.10) trying to run FileZilla 3.33.0.
****GnuTLS error -50 in gnutls_priority_set_direct: The request is invalid.
Error: Failed to initialize TLS.
Error: Could not connect to server****
and got this response online:
Bug in Ubuntu, they have for some insane reason decided to switch to a development version of GnuTLS just weeks prior to the Ubuntu 18.10 release. Contact Ubuntu support and have them switch back to a version of GnuTLS that had been marked stable at the time of release of said GnuTLS version.
Any idea how I can correct this problem?