New after install error

[Shades]

2.1RC4

It seemed to install fine but after it returned me to the packages screen this error popped in my admin error log:

62bab04e1c27b50c2fbdec7741c361cd
 https://something.com/index.php?action=admin;area=classifieds;sa=admin
 /home2/something/something/Sources/classifieds2.php (Line 58) 

Type of error: Undefined
Error messageSelect
8: Undefined index: class_nextcheck

Backtrace:

Type of error
Undefined_vars
Error message
8: Undefined index: class_nextcheck
File
/home2/something/something/Sources/classifieds2.php
Line
58
URL of page causing the error
https://something.com/index.php?action=admin;area=classifieds;sa=admin

#0: smf_error_handler()
Called from /home2/something/something/Sources/classifieds2.php on line 58
#1: ClassifiedsMain()
Called from /home2/something/something/Sources/Admin.php on line 499
#2: AdminMain()
Called from /home2/something/something/index.php on line 187

[SMFHacks]

Add a blank entry to your smf_settings table for class_nextcheck

[Shades]

Not sure how to do that exactly

[SMFHacks]

Download new version at https://www.smfhacks.com/index.php/topic,1149.msg6645.html#msg6645 then