Can someone explain me why my iPhone 6 reboots randomly?

my iPhone 6(iOS 9.3.1) keeps rebooting randomly by itself(at least once a day)

i even did a dfu and a fresh restore.

i Haven't tried setting it up as a new phone(I don't wanna lose all my stuff)

so can someone explain me what this log means?(I didn't copy the whole thing cuz it was pretty long)

0400","bug_type":"210","os_version":"iPhone OS 9.3.1 (13E238)"}

{

"build" : "iPhone OS 9.3.1 (13E238)",

"product" : "iPhone7,2",

"kernel" : "Darwin Kernel Version 15.4.0: Fri Feb 19 13:54:49 PST 2016; root:xnu-3248.41.4~28\/RELEASE_ARM64_T7000",

"incident" : "B343F7CB-28D7-4258-9DC5-9DC6A861D23D",

"crashReporterKey" : "efb3d1c47aad6143e04e8a866915962dc5ace1aa",

"date" : "2016-05-12 10:08:09.09 -0400",

"panicString" : "panic(cpu 0 caller 0xffffff80228f9958): Kernel data abort. (saved state: 0xffffff8020b83530)\n\t x0: 0x0000000000000000 x1: 0xffffff812442df00 x2: 0xffffff812442dfe4 x3: 0x0000000000000014\n\t x4: 0x0000000000000028 x5: 0x000000000000000e x6: 0x0000000000000000 x7: 0x000000004f05b0fa\n\t x8: 0x0000000000000014 x9: 0xffffff812442dfe4 x10: 0x0000000000000000 x11: 0x0000000000008000\n\t x12: 0x0000000000000028 x13: 0x0000000000000012 x14: 0x000000000000ffff x15: 0x00000000f38aa9cd\n\t x16: 0xffffff802299d778 x17: 0x00000000ca8854ee x18: 0x0000000000000000 x19: 0xffffff812442df00\n\t x20: 0x0000000000000014 x21: 0xffffff812442dfe4 x22: 0x0000000000000028 x23: 0xffffff8022d9a130\n\t x24: 0xffffff8022d93150 x25: 0xffffff812442dfd0 x26: 0x0000000000000014 x27: 0x0000000000000028\n\t x28: 0x0000000000000000 fp: 0xffffff8020b83960 lr: 0xffffff8022a43390 sp: 0xffffff8020b83880\n\t pc: 0xffffff8022a43420 cpsr: 0x20000204 esr: 0x96000007 far: 0xffffff812442e004\n\nDebugger message: panic\nOS version: 13E238\nKernel version: Darwin Kernel Version 15.4.0: Fri Feb 19 13:54:49 PST 2016; root:xnu-3248.41.4~28\/RELEASE_ARM64_T7000\niBoot version: iBoot-2817.40.106\nsecure boot?: YES\nPaniclog version: 5\nKernel slide: 0x000000001e800000\nKernel text base: 0xffffff8022804000\nEpoch Time: sec usec\n Boot : 0x573320e4 0x00000000\n Sleep : 0x57348c66 0x0000d0bc\n Wake : 0x57348c66 0x000c0d6b\n Calendar: 0x57348e36 0x000bc195\n\nPanicked task 0xffffff800094e0d0: 57639 pages, 191 threads: pid 0: kernel_task\npanicked thread: 0xffffff8000d7c800, backtrace: 0xffffff8020b83190\n\t\t lr: 0xffffff80229025a4 fp: 0xffffff8020b831e0\n\t\t lr: 0xffffff802282c0d0 fp: 0xffffff8020b83240\n\t\t lr: 0xffffff80228f9958 fp: 0xffffff8020b83420\n\t\t lr: 0xffffff80228f9fe8 fp: 0xffffff8020b83510\n\t\t lr: 0xffffff80228f91f0 fp: 0xffffff8020b83520\n\t\t lr: 0xffffff8022a43420 fp: 0xffffff8020b83960\n\t\t lr: 0xffffff8022a192e8 fp: 0xffffff8020b83ac0\n\t\t lr: 0xffffff802299d828 fp: 0xffffff8020b83af0\n\t\t lr: 0xffffff80238a6070 fp: 0xffffff8020b83b10\n\t\t lr: 0xffffff80229803bc fp: 0xffffff8020b83c20\n\t\t lr: 0xffffff8022981198 fp: 0xffffff8020b83ca0\n\t\t lr: 0xffffff80228ff380