Map Server Crash

[Grindome 0]

Thread 1 "map-server" received signal SIGSEGV, Segmentation fault.
0x000055555565308c in bl_getall_area (type=1, m=0, x0=1, y0=8, x1=0, y1=-1, 
    func=0x0) at map.c:791
791                            for (bl = listm->block[bx + bxs]; bl != NULL; bl = bl->next) {
(gdb) bt full
#0  0x000055555565308c in bl_getall_area (type=1, m=0, x0=1, y0=8, x1=0, 
    y1=-1, func=0x0) at map.c:791
        bxs = <optimized out>
        x1b = <optimized out>
        y0b = <optimized out>
        listm = <optimized out>
        x0b = <optimized out>
        y1b = <optimized out>
        bxs0 = <optimized out>
        args = {{gp_offset = 18, fp_offset = 38, overflow_arg_area = 0x23, 
            reg_save_area = 0xfffffffffffffff8}}
        bx = <optimized out>
        by = <optimized out>
        bl = <optimized out>
        found = <optimized out>
#1  0x000055555565389f in map_vforeachinarea (
    func=0x5555555ede80 <clif_send_sub>, m=0, x0=1, y0=8, x1=0, y1=-1, type=1, 
    ap=0x7fffffffe0f8) at map.c:1047
        returnCount = 0
        blockcount = 0
        apcopy = {{gp_offset = 48, fp_offset = 48, 
            overflow_arg_area = 0x7fffffffe1d8, 
            reg_save_area = 0x7fffffffe110}}
--Type <RET> for more, q to quit, c to continue without paging--c
#2  0x000055555564eb36 in map_foreachinarea (func=0x1, m=0, x0=1, y0=8, x1=0, y1=-1, type=0) at map.c:1077
        returnCount = 0
        ap = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fffffffe1d8, reg_save_area = 0x7fffffffe110}}
#3  0x00005555555ea30a in clif_send (buf=0x7fffffffe288, len=7, bl=0x5555586f9b88, type=ALL_CLIENT) at clif.c:489
        __func__ = "clif_send"
        i = <optimized out>
        sd = <optimized out>
        tsd = <optimized out>
        p = 0x586f9b00
        g = 0x8
        bgd = 0x0
        x0 = <optimized out>
        x1 = <optimized out>
        y0 = <optimized out>
        y1 = <optimized out>
        fd = <optimized out>
        iter = <optimized out>
        area_size = 0
#4  0x00005555555caa2d in clif_clearunit_area (bl=0x5555586f9b88, type=CLR_OUTSIGHT) at clif.c:925
        buf = "\200\000\231z\225\006\001"
        __func__ = "clif_clearunit_area"
#5  0x00005555555caade in clif_clearunit_delayed_sub (tid=1, tick=0, id=1, data=93825044290440) at clif.c:939
        bl = <optimized out>
#6  0x00005555557b283a in do_timer (tick=1) at timer.c:498
        tid = <optimized out>
        diff = <optimized out>
        __func__ = "do_timer"
#7  0x0000555555572e33 in main (argc=1, argv=0x7fffffffe438) at core.c:538
        next = 0
        retval = 1434134096
(gdb) Quit
(gdb)

This is the dump file. Haven't edited anything on source and such.