Error in running model when add a new variable in the accFldsMod.F90

[ncepulee@126_com]

HI,all: i want to add a 10-day running mean of btran(tranpiration beta factor) in  accFldsMod.F90, then used this new variable to change the slatop in  CNVegStructUpdateMod.F90.When i added it in the code, building cesm.exe could pass.But, error appeared when running the model. The error in cesm.log as following:[compute-0-10:58683] *** Process received signal ***
[compute-0-10:58683] Signal: Segmentation fault (11)
[compute-0-10:58683] Signal code: Address not mapped (1)
[compute-0-10:58683] Failing at address: (nil)
[compute-0-10:58683] [ 0] /lib64/libpthread.so.0() [0x3c6640f710]
[compute-0-10:58683] [ 1] /home/lipan/clm/exeroot/exeroot_1x1pt_CN-NMG/cesm.exe(__accfldsmod_MOD_initaccclmtype+0x10f5) [0x777945]
[compute-0-10:58683] [ 2] /home/lipan/clm/exeroot/exeroot_1x1pt_CN-NMG/cesm.exe(__clm_initializemod_MOD_initialize2+0x50c) [0x4e966e]
[compute-0-10:58683] [ 3] /home/lipan/clm/exeroot/exeroot_1x1pt_CN-NMG/cesm.exe(__lnd_comp_mct_MOD_lnd_init_mct+0x3090) [0x4d5ab8]
[compute-0-10:58683] [ 4] /home/lipan/clm/exeroot/exeroot_1x1pt_CN-NMG/cesm.exe(__ccsm_comp_mod_MOD_ccsm_init+0x8a9f) [0x458c8b]
[compute-0-10:58683] [ 5] /home/lipan/clm/exeroot/exeroot_1x1pt_CN-NMG/cesm.exe(MAIN__+0x45) [0x479045]
[compute-0-10:58683] [ 6] /home/lipan/clm/exeroot/exeroot_1x1pt_CN-NMG/cesm.exe(main+0x2a) [0x99021a]
[compute-0-10:58683] [ 7] /lib64/libc.so.6(__libc_start_main+0xfd) [0x3c65c1ed5d]
[compute-0-10:58683] [ 8] /home/lipan/clm/exeroot/exeroot_1x1pt_CN-NMG/cesm.exe() [0x44cdc9]
[compute-0-10:58683] *** End of error message ***

I realized that the error was cacused by addting the new variable, but could not location the problem.Thanks a lot for anyone,who can give me some suggestion. The new variable was named b10 and B10 in the relevant mod. The attach files were the F90 files which  i modified.