Error After Major FUNC: add_update_counter_master_rec for rec_num: 4

--> set_rec_field_str called to set: "last_IP_addr" with value: {{72.44.48.122}}
--> set_rec_field_str called to set: "last_date" with value: {{1369320453}}
--> set_rec_field_str called to set: "S1" with value: {{1}}
--> set_rec_field_str called to set: "S2" with value: {{1369267200}}
--> set_rec_field_str called to set: "S3" with value: {{11}}
--> set_rec_field_str called to set: "S4" with value: {{1369180800}}
--> set_rec_field_str called to set: "S5" with value: {{}}
--> set_rec_field_str called to set: "S6" with value: {{1368662400}}
--> 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:
4| I| 1| 62928| A| 72.44.48.122| 1369320453| 1| 1369267200| 11| 1369180800| | 1368662400| | 1367366400| | 1356998400| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |