Help: L3 hss cut out

i have a L3hss guitar and totally love the guitar, the only issue i am having at the moment is when im playing a gig, the guitar sometimes cuts out completely even with a brand new battery.

To correct the problem i have to disconnect the battery then reconnect to carry on playing, as you can imagine its very frustrating especially half way through a song.

Im just wondering if anyone else has experienced this and if so is there a solution to the issue.
any feedback will very much appreciated.
Many thanks
Phil.