not sure what this error means

[Shelley Brundage]

Hello chibolts:
I am checking some files and got the error below.  what does the
highlighted part mean and how can I fix it?  thanks

*MOT: [- spa] vamos.
Current BEG time is smaller than previous' tier BEG time(83)
Second pass DONE.
-- 
Shelley B. Brundage, Ph.D., CCC-S
Associate Professor and Graduate Program Director
Board Recognized Specialist and Mentor-Fluency Disorders
Speech and Hearing Science department
George Washington University
2115 G St NW Suite 201
Washington, D.C. 20052
(202) 994-5008 office
(202 994-2205 lab
(202) 994-2589 fax

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