What is this error in filezilla

Error: GnuTLS error -15 in gnutls_record_recv: An unexpected TLS packet was received.
Error: Could not read from socket: ECONNABORTED - Connection aborted
Error: Could not connect to server

This is the error I am getting when I start filezilla, I verified the certificate being used for the SSL/TLS connection and click OK to connect to the FTP server:

Make sure your configuration is correct. This will help you -

Just make changes in the conf file and restart your server and then connect to filezilla

Was this Solved, I am stuck and have not found a single answer to this