We Scar GBB Bolt broken and chipped off

[comandosav07]

part number 48 which is the top of the bolt that holds the cocking handle just snapped off the back end where it meets the spring guide, its been used for about a year, there doesnt seem to be any damage to the spring guide which goes behind it but the gun sounds different when firing, any one else know about this or if i should stop using it immediately? any help would be much appreciated thanks