The website of Scottish League Cup winners Ross County was accidentally deleted, causing problems with selling tickets.
The Dingwall-based Scottish Premiership outfit uses web hosting firm 123-reg.
The company, which hosts 1.7m sites in the UK, has said an error made during maintenance "effectively deleted" what was on some of its servers.
David O'Connor, of Ross County, said the issue came amid the club's build up to next Sunday's game against Celtic.
The Staggies' website went down on Saturday and was not restored until Tuesday afternoon.
Mr O'Connor said: "Online is a crucial part of our ticket sales, selling merchandise and the website is where fans go to to reserve seats on buses and find match information."
While the website was unavailable, supporters were asked to contact the club by phone, or visit the stadium to buy tickets.
But Mr O'Connor said: "Coming to the ground is not easy for the fan who works nine to five. Our fan base is always widely spread out across the Highlands and it means supporters having to travel quite a distance to get to Dingwall."
Earlier this week, 123-reg started a "recovery process" but advised customers with their own data backup to rebuild their own websites.