Kerr raised concerns over the state of the playing ground, coming just a few hours after his side went down 2-1 to Bandari at the same ground on Tuesday.
The victory ended Gor Mahia’s 22-match unbeaten run after the coastal-based side showed the rest of the clubs how to beat the league defending champions.
"We played in probably the worst pitch in the country. Tts surface is not good at all. It can cause serious injuries to players.
“It was hard for my players to play their game and at the end, we lost the match.
"We have conceded seven goals in five matches, meaning there is a problem which we have to solve.
“Unfortunately that has not happened because we have had a tight schedule, but it has to be done before our game against Rayon Sports in the Caf Confederation Cup."
The win took Bandari to the second position, 11 points behind Gor Mahia, who have played three matches less.