esp8266 exception

ctx: sys 
sp: 3ffffd70 end: 3fffffb0 offset: 01a0

>>>stack>>>
3fffff10:  4010502c 001d3def 3ffe9284 00000000  
3fffff20:  4010502c 001d45f1 3ffeedf0 00000000  
3fffff30:  3ffee6f0 3ffeedf0 40222613 3ffe9284  
3fffff40:  00000000 001ccbdf 40201364 00000064  
3fffff50:  3ffeedf0 01b12953 60000600 40106895  
3fffff60:  40229e70 00000001 00000000 4020207c  
3fffff70:  60000600 3ffee6f0 3fff06ec 40229e7d  
3fffff80:  40229ec2 3fffdab0 00000000 3fffdcb0  
3fffff90:  3ffee700 3fffdab0 00000000 40204043  
3fffffa0:  40000f49 40000f49 3fffdab0 40000f49  
<<<stack<<<



Exception 9: LoadStoreAlignmentCause: Load or store to an unaligned address
Decoding 14 results
0x40104e00: ets_timer_setfn at ?? line ?
0x4010502c: ets_timer_arm_new at ?? line ?
0x4010502c: ets_timer_arm_new at ?? line ?
0x40222613: pp_enable_noise_timer at ?? line ?
0x40201364: delay at <home>/.arduino15/packages/esp8266/hardware/esp8266/2.4.0/cores/esp8266/core_esp8266_wiring.c line 46
0x40106895: __digitalWrite at <home>/.arduino15/packages/esp8266/hardware/esp8266/2.4.0/cores/esp8266/core_esp8266_wiring_digital.c line 84
0x40229e70: ets_timer_handler_isr at ?? line ?
0x4020207c: blink(int) at <repo>/sonoffsocket/sonoffsocket.ino line 130
0x40229e7d: ets_timer_handler_isr at ?? line ?
0x40229ec2: ets_timer_handler_isr at ?? line ?
0x40204043: loop_task at <home>/.arduino15/packages/esp8266/hardware/esp8266/2.4.0/cores/esp8266/core_esp8266_main.cpp line 57