Hansi Flick rued Barcelona's lack of quality in the final third, after his side were to a 1-1 draw by Getafe.
The Blaugrana's winless streak in LaLiga extended to four matches, leaving them five points adrift of leaders Atletico Madrid, and they could fall seven behind Real Madrid if Carlo Ancelotti's side beat Las Palmas on Sunday.
Barca dominated large periods of the contest at Estadio Coliseum, where Mauro Arambarri cancelled out Jules Kounde's earlier effort.
But despite 77.6% of possession and registering 21 shots with an xG of 2.35, they were unable to break down their 16th-place opponents, leaving Flick frustrated by his side's profligacy.
"We wanted to win, and we had chances to win," he told reporters during his post-match press conference. "I'm very disappointed that we could not score more goals.
"You can see what it's like to play here in Getafe. They defend well. We created chances, but we weren't on target.
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"We have to keep going. I repeat that we had chances, especially in the first half. After that, I think we lacked a bit more passing accuracy.
"If only we were able to score another goal, but there is nothing I can do now, and I have to accept the result," Flick said.
"But there is still a long way to go, and we will fight until the end trying to win LaLiga. We lost two points but earned one, so we have to look ahead and try to improve moving forward."
Barca's winless streak at Estadio Coliseum also continued, with them now having failed to win on each of their last five visits in LaLiga.
"There was a lot of emotion in this stadium, in all the actions, in the contacts," Flick added.
"I have never experienced anything like this before. It's something new for me and I have to get used to it."