FTP not starting correctly

Hi,
i installed my omv 2 and set up ftp
if my server starts and i watch the dashboard, then the "running" dot for ftp is red. trying to connect with filezilla returns me "ECONNREFUSED - Connection refused from server"
the clean log for ftp after a restart is here:

if i go to services -> ftp and disable ftp service and activate it then again, it runs correctly with a blue "running" dot.

what is going wrong? do you need some other info?

it is connecting
the last lines from the test site log:

Command: PBSZ 0


      Reply: 200 PBSZ 0 successful


      Command: PROT P


      Reply: 200 Protection set to Private


      Command: PWD


      Reply: 257 "/" is the current directory


      Status: Current path is /


      Command: TYPE I


      Reply: 200 Type set to I


      Command: PASV


      Reply: 227 Entering Passive Mode (xxx,xxx,xxx,xxx,166,20).


      Command: MLSD


      Error: Could not establish data connection: No route to host

why the hell is it 166,20 -> port 42516

i set 14100-14105 for passive ftp

there is just my router. the router is forwarding the ports to the server

it is a fritz box

if i open ALL ports from my server on the router settings it is able to connect

edit:
wtf... now is all working. i changed nothing... same settings as before...
weird software

edit2:
the reboot problem doesnt occure now anymore -.-"

i located the problem.

it has to do sth with the omv firewall.
my current firewall settings:

what port(s) i have to open additional?

edit:
current state is:

• if i accept all input ftp connection works
• if i reject all except the rules in shown picture it does not connect.
• router settings do not care, they arent changed in the last test.

tl;dr

• INPUT - REJECT [ALL] -> no connection
• INPUT - ACCEPT [ALL] -> connection

there is no such file

file created.
going to lunch now. will be back in half an hour

edit:
all is working now.

i changed my firewall settings in omv. all ports in source are deleted. just destination ports entered