How to keep script running if surface fit function within failed?

I wrote a script to automate my imaging analysis. It calls my custom surface fit function hundreds of times. Every once in a while the surface fit fails and I get the following massage:

Error using fit>iFit (line 353) Inf computed by model function, fitting cannot continue. Try using or tightening upper and lower bounds on coefficients.

I use Trust-Region algorithm and I have tight bounds for every parameter, theoretically I should not be getting this massage. Anyway, is it possible to keep the script going even if fitting function failed?

Thanks.