Unknown column 'notify_types'

[Shades]

2.1RC4 (Fresh Install- 1 mod)
Classifieds - 5.1.5b

Tried to add an ad into a category and got this error:

Unknown column 'notify_types' in 'where clause'
File: /home2/*****/public_html/*****/Sources/classifieds2.php
Line: 10340

Here is the admin error log:

Type of error
Database
Error message
Database Error: Unknown column 'notify_types' in 'where clause'
File
/home2/*****/public_html/*****/Sources/classifieds2.php
Line
10340
URL of page causing the error
https://*****.com/*****/index.php?action=classifieds;sa=addlisting2
Backtrace information
#0: smf_db_error()
Called from /home2/*****/public_html/*****/Sources/Subs-Db-mysql.php on line 491
#1: smf_db_query()
Called from /home2/*****/public_html/*****/Sources/classifieds2.php on line 10340
#2: Classifieds_emailAdmins()
Called from /home2/*****/public_html/*****/Sources/classifieds2.php on line 1191
#3: Classifieds_AddListing2()
Called from /home2/*****/public_html/*****/Sources/classifieds2.php on line 192
#4: ClassifiedsMain()
Called from /home2/*****/public_html/*****/index.php on line 187

[SMFHacks]

Fixed
5.1.6
!Fixed bug with Classifieds_emailAdmins with SMF 2.1.x

[Shades]

Thanks! You've been busy!  

[SMFHacks]

Yes, lol