Caernarfon Town manager Richard Davies says it is unfair that the club’s fans cannot attend the Europa Conference League qualifier against Legia Warsaw.
The Canaries have reached the second qualifying round and will face Polish giants Legia in the first leg on Thursday.
But the game will be played behind closed doors after Legia were sanctioned by UEFA following crowd trouble during their match against Aston Villa in the same competition last season.
“That’s the most disappointing thing for everyone at the club,” Davies told BBC Sport Wales.
“We had a great experience in Belfast and the fans were phenomenal.
“The final scenes were something we will cherish forever.
“I think it’s unfair that visiting fans are punished for something someone else did.
“It’s really frustrating but it is what it is and in the home game we will try to put as much as we can on the pitch.”
Caernarfon, the best supported team in the Cymru Premier, had the support of 400 traveling fans for their first qualifying trip to Northern Ireland to face the Crusaders.
This was Caernarfon’s first European trip and now the north Wales club face a tough test against the 15-time Polish champions.
“We know the task ahead will be enormous,” said Davies.
“I think they are the most decorated team in the competition, so it won’t be easy.”
Memorable from last Thursday penalty shootout victory over Crusaders in Belfast is still very fresh in the mind.
Caernarfon won the home game 2-0 the previous week and, despite losing 3-1 on the night of the return game at Seaview, won 8-7 on penalties.
“It was a rollercoaster of emotions throughout the game,” Davies said.
“A huge relief to get over the line – I thought we had thrown it away at one point, but I have to give credit to my players for showing the resilience and courage just to see it happen.
“When we won 1-0 I thought it should be up to us but the fact they scored two goals early in the second half made us worry and then momentum played a part and they got the third.
“To be fair, I think we held out then and in extra time. I thought we were the better team but it’s a lottery when it comes to penalties and I certainly went home with more gray hair than when I got there.
Davies says his team, who are semi-professional, will not have time to train before Thursday’s first game
“After taking knocks and all that, the lads need time to recover, so most of our preparation now will be done through presentations and analysis and showing clips to the players,” Davies added.
“As much as we would like to, since we work part time, we don’t have ice baths and all that goes with them.
“That’s the challenge in itself, but we just have to try to do the best we can and move forward.
“We have the entire management team watching the last five games.
“They played their first home game on Saturday night, which I watched and yes, it’s more about getting an idea about their style of play, any patterns we can pick up on, their main strengths.”
Caernarfon’s preparations for the first leg in Poland were further complicated by the global IT outage, which was described as “one of the worst IT outages in history”.
“To be honest, it’s been a nightmare,” Davies said.
“We didn’t get any confirmation until late Friday afternoon whether we were going to play on Thursday or Wednesday and then we had a disruption on Friday so group bookings couldn’t be made over the weekend.
“Logistically it has been a nightmare, but we hope we have worked something out. “
