Unexpected DB error occurred near:

Error After Major FUNC: add_update_counter_master_rec for rec_num: PL1244515516

--> set_rec_field_str called to set: "last_IP_addr" with value: {{38.107.191.97}}
--> set_rec_field_str called to set: "last_date" with value: {{1283588798}}
--> set_rec_field_str called to set: "S1" with value: {{1}}
--> set_rec_field_str called to set: "S2" with value: {{1283558423}}
--> set_rec_field_str called to set: "S3" with value: {{1}}
--> set_rec_field_str called to set: "S4" with value: {{1283472023}}
--> set_rec_field_str called to set: "S5" with value: {{}}
--> set_rec_field_str called to set: "S6" with value: {{1282953623}}
--> set_rec_field_str called to set: "S7" with value: {{}}
--> set_rec_field_str called to set: "S8" with value: {{1283299223}}
--> set_rec_field_str called to set: "S9" with value: {{}}
--> set_rec_field_str called to set: "S10" with value: {{1262304023}}
--> 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:
PL1244515516| I| 1| 806| A| 38.107.191.97| 1283588798| 1| 1283558423| 1| 1283472023| | 1282953623| | 1283299223| | 1262304023| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |