How to debug a failed Gaussian IRC calculation?
According to the output, it seems like OP is using Gaussian 09 software package. And according to the error message, the problem is that at 9th step of IRC procedure, Gaussian could not optimize the geometry in 20 steps (which is the default number). I suggest first to increase the number of geometry optimization iterations for each and every IRC step by using the MaxCycle=N option as follows:

IRC=(...,MaxCycle=100)