exception occurred in sqlmap/1.6.8.3#dev

[Sub-7]

I gen Error --> Command line: /usr/bin/sqlmap -m IP_LIST --crawl=2 --batch SqlMap.txt

[ERROR] thread MainThread: unhandled exception occurred in sqlmap/1.6.8.3#dev. It is recommended to retry your run with the latest development version from official GitHub repository at 'https://github.com/sqlmapproject/sqlmap'. If the exception persists, please open a new issue at 'https://github.com/sqlmapproject/sqlmap/issues/new' with the following text and any other information required to reproduce the bug. Developers will try to reproduce the bug, fix it accordingly and get back to you
Running version: 1.6.8.3#dev
Python version: 2.7.18
Operating system: Linux-5.4.0-124-generic-x86_64-with-Ubuntu-20.04-focal
Command line: /usr/bin/sqlmap -m IP_LIST --crawl=2 --batch SqlMap.txt
Technique: None
Back-end DBMS: MySQL (identified)
Traceback (most recent call last):
File "/usr/share/sqlmap/lib/core/threads.py", line 164, in runThreads
_threadFunction()
File "/usr/share/sqlmap/lib/core/threads.py", line 124, in _threadFunction
threadFunction()
File "/usr/share/sqlmap/lib/utils/crawler.py", line 75, in crawlThread
content = Request.getPage(url=current, post=post, cookie=None, crawling=True, raise404=False)[0]
File "/usr/share/sqlmap/lib/request/connect.py", line 887, in getPage
raise SqlmapSkipTargetException
SqlmapSkipTargetException