has some errors

[exploit-inters]

Hello thank you for your great job and that nice tool!
for correct work me need create table infos?
i am try :
Enter the URI of the target

http://www.mytarget.be/Olivia/comment.php?id=7'

[+] Searching for SQLi vulnerability...
[+] Target seems to be vulnerable !

[+] Dumping Database information...
Traceback (most recent call last):
File "sql2shell.py", line 57, in
print(" [*] Database Name : " + infos[0])
NameError: name 'infos' is not defined
Can are you help me please?

[exploit-inters]

anybody help me please?