CCL:G: CPHF failed to converge in LinEq1

 Sent to CCL by: "Raphael  Martinez" [raphaelmartinez1983+*+gmail.com]
 I have this unexpected error using gaussian 09 while trying to optimized a
 molecule that contains benzene rings conjugated through vinyl groups (0 1).
 CPHF failed to converge in LinEq1.
 Error termination via Lnk1e in /soft/gaussian/g09.c01/g09/linda-exe/l508.exel
 Any ideas how to fix this?
 Here is the command line of my input,
  # opt=calcfc m062x/6-311+g(d,p) SCF=(qc,MaxCycle=4100)
 The reason for the qc, and maxcycle=4100 is because the calculation was failing
 with a Convergence failure -- run terminated.Error termination via Lnk1e in
 .../g09/l502.exe. So I have to go extreme and type qc and 4100 max cycles. It is
 also worth to mention that I was able to run the optimization with out the
 "+".
 Thanks a lot for the help