IN your core ini file. Here's where I had to set mine.I got that error a long time back. Look at replay mem overide.
[Replay]
record_telem=0 ; Record telemetry to replay?
record_telem_at_physics_rate=0 ; Record telemetry to replay at physics rate?
record_telem_sample=1 ; Bitwise or(1=hdr,2=chass,4=wheel,8=tire,16=drvline,32=plyrinput)
record_telem_state_a=8 ; Bitwise or(1=trk,2=inCar,4=paused,8=setup,16=pitstop)
record_telem_state_b=0 ; unused
replay_editor_show_std_sounds=0 ; Include sound samples in standard table?
replay_editor_show_std_stamps=1 ; Include stamps in standard table?
replay_editor_show_std_strings=1 ; Include localized strings in standard table?
replayMemoryOverride=499999 ; Kbytes of replay memory to use
rpy_editor_bitmap_extension=bmp ; bmp and tga are valid
rpy_editor_sound_extension=wav ; wav and ogg are valid