Error After Major FUNC: add_update_counter_master_rec for rec_num: 2

--> set_rec_field_str called to set: "last_IP_addr" with value: {{184.72.91.94}}
--> set_rec_field_str called to set: "last_date" with value: {{1369051302}}
--> set_rec_field_str called to set: "S1" with value: {{1}}
--> set_rec_field_str called to set: "S2" with value: {{1369008000}}
--> set_rec_field_str called to set: "S3" with value: {{1}}
--> set_rec_field_str called to set: "S4" with value: {{1368921600}}
--> set_rec_field_str called to set: "S5" with value: {{}}
--> set_rec_field_str called to set: "S6" with value: {{1368403200}}
--> set_rec_field_str called to set: "S7" with value: {{}}
--> set_rec_field_str called to set: "S8" with value: {{1367366400}}
--> set_rec_field_str called to set: "S9" with value: {{}}
--> set_rec_field_str called to set: "S10" with value: {{1356998400}}
--> update_record called
*** get_db_error_msg called to return: Error from cbt level ***
===> ISAM error: Error from cbt level data file: Qfiles/Qcounters.db CBT error: key not found function: cbunlock context: finding leaf containing key ----> update_record function FAILED with error: Error from cbt level

DB Error= 1

Error Record's Field Contents:
2| I| 1| 25401| A| 184.72.91.94| 1369051302| 1| 1369008000| 1| 1368921600| | 1368403200| | 1367366400| | 1356998400| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |