You have dm maps in rotation on a ctf server.
cbctf1, oa_ctf2, oasago2ctf, hydronex, delta, suction, czest2ctf, czest3ctf, oa_bases3, oa_bases5, and oa_ctf4ish are the ctf maps available with bot support islandctf has no bot support. so your config should look something like this for a pure ctf server with bot support:
set m1 "map cbctf1; set nextmap vstr m2"
set m2 "map czest2ctf; set nextmap vstr m3"
set m3 "map czest3ctf; set nextmap vstr m4"
set m4 "map delta; set nextmap vstr m5"
set m5 "map hydronex; set nextmap vstr m6"
set m6 "map islandctf; set nextmap vstr m7"
set m7 "map oa_bases3; set nextmap vstr m8"
set m8 "map oa_bases5; set nextmap vstr m9"
set m9 "map oa_ctf2; set nextmap vstr m10"
set m10 "map oa_ctf4ish; set nextmap vstr m11"
set m11 "map suction; set nextmap vstr m12"
set m12 "map oasago2f2; set nextmap vstr m1"
with a map that has no bot support it will look like this:
set m1 "map cbctf1; set nextmap vstr m2"
set m2 "map czest2ctf; set nextmap vstr m3"
set m3 "map czest3ctf; set nextmap vstr m4"
set m4 "map delta; set nextmap vstr m5"
set m5 "map hydronex; set nextmap vstr m6"
set m6 "map islandctf; set nextmap vstr m7"
set m7 "map oa_bases3; set nextmap vstr m8"
set m8 "map oa_bases5; set nextmap vstr m9"
set m9 "map oa_ctf2; set nextmap vstr m10"
set m10 "map oa_ctf4ish; set nextmap vstr m11"
set m11 "map suction; set nextmap vstr m12"
set m12 "map oasago2f2; set nextmap vstr m13"
set m13 "map islandctf; set nextmap vstr m1"
Though it looks like your server is crashing on islandctf...