[Serusers] set_timer caller

Hi all, I have this message during SER runtime. 10(17177) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf73f01b8 7(17171) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf6186090 10(17177) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf694a60c 3(17163) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf6fe9ecc 2(17161) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf79f50c0 8(17173) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf767ed08 8(17173) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf7482294 3(17163) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf75b56c8 7(17171) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf704f65c 4(17165) WARNING: set_timer called on a "detached" timer -- ignoring: 0xf6862054 Somebody knows what means? -- Gildo Caceres