Issue with narrowing alignments

[amitblumberg1e]

Hello,
Thanks for your great tool.

While successfully using CrisprVariant for several samples, I got the following error, for one of the samples:
Error in .Call2("solve_user_SEW", refwidths, start, end, width, translate.negative.coord, :
solving row 150: 'allow.nonnarrowing' is FALSE and the supplied start (527) is > refwidth + 1

Do you have please, any solution/ idea for the reason of that error?

Thanks
Amit