Running version: 1.7.7.2#dev
Python version: 3.7.4
Operating system: Windows-10-10.0.19041-SP0
Command line: sqlmap.py -u ********************************************************************** -p type_id -D **** -T leadership --dump-all --batch
Technique: ERROR
Back-end DBMS: MySQL (fingerprinted)

Traceback (most recent call last):
  File "lib/utils/hashdb.py", line 182, in beginTransaction
    self.cursor.execute("BEGIN TRANSACTION")
sqlite3.ProgrammingError: Cannot operate on a closed cursor.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "sqlmap.py", line 222, in main
    start()
  File "lib/core/decorators.py", line 80, in _
    result = f(*args, **kwargs)
  File "lib/controller/controller.py", line 732, in start
    action()
  File "lib/controller/action.py", line 171, in action
    conf.dbmsHandler.dumpAll()
  File "plugins/generic/entries.py", line 513, in dumpAll
    self.dumpTable()
  File "plugins/generic/entries.py", line 251, in dumpTable
    entries = inject.getValue(query, blind=False, time=False, dump=True)
  File "lib/core/decorators.py", line 96, in _
    result = f(*args, **kwargs)
  File "lib/core/decorators.py", line 80, in _
    result = f(*args, **kwargs)
  File "lib/request/inject.py", line 451, in getValue
    value = errorUse(forgeCaseExpression if expected == EXPECTED.BOOL else query, dump)
  File "lib/techniques/error/use.py", line 442, in errorUse
    runThreads(numThreads, errorThread)
  File "lib/core/threads.py", line 259, in runThreads
    conf.hashDB.flush(True)
  File "lib/utils/hashdb.py", line 146, in flush
    self.beginTransaction()
  File "lib/utils/hashdb.py", line 185, in beginTransaction
    self.cursor.close()
sqlite3.ProgrammingError: Cannot operate on a closed database.