Unexpected DB error occurred near:

Error After Major FUNC: add_update_counter_master_rec for rec_num: PL1322628885

--> set_rec_field_str called to set: "last_IP_addr" with value: {{54.161.100.24}}
--> set_rec_field_str called to set: "last_date" with value: {{1540025764}}
--> set_rec_field_str called to set: "S1" with value: {{1}}
--> set_rec_field_str called to set: "S2" with value: {{1539993600}}
--> set_rec_field_str called to set: "S3" with value: {{85}}
--> set_rec_field_str called to set: "S4" with value: {{1539907200}}
--> set_rec_field_str called to set: "S5" with value: {{}}
--> set_rec_field_str called to set: "S6" with value: {{1539388800}}
--> set_rec_field_str called to set: "S7" with value: {{}}
--> set_rec_field_str called to set: "S8" with value: {{1538352000}}
--> set_rec_field_str called to set: "S9" with value: {{}}
--> set_rec_field_str called to set: "S10" with value: {{1514764800}}
--> 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:
PL1322628885| I| 1| 115577| A| 54.161.100.24| 1540025764| 1| 1539993600| 85| 1539907200| | 1539388800| | 1538352000| | 1514764800| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |