Unexpected DB error occurred near:

Error After Major FUNC: add_update_counter_master_rec for rec_num: PL1242607861

--> set_rec_field_str called to set: "last_IP_addr" with value: {{38.107.179.228}}
--> set_rec_field_str called to set: "last_date" with value: {{1327693233}}
--> set_rec_field_str called to set: "S1" with value: {{1}}
--> set_rec_field_str called to set: "S2" with value: {{1327622424}}
--> set_rec_field_str called to set: "S3" with value: {{5}}
--> set_rec_field_str called to set: "S4" with value: {{1327536024}}
--> set_rec_field_str called to set: "S5" with value: {{}}
--> set_rec_field_str called to set: "S6" with value: {{1327017624}}
--> set_rec_field_str called to set: "S7" with value: {{}}
--> set_rec_field_str called to set: "S8" with value: {{1325376024}}
--> set_rec_field_str called to set: "S9" with value: {{}}
--> set_rec_field_str called to set: "S10" with value: {{1325376024}}
--> 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:
PL1242607861| I| 1| 9773| A| 38.107.179.228| 1327693233| 1| 1327622424| 5| 1327536024| | 1327017624| | 1325376024| | 1325376024| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |