BB not parsing - error

[twobrutal]

vb 4.2.5
php 7.1

After a server/domain move.

BB code is not being parsed.
I have looked in the post tables and specific post ID's where I know BB code is being used and it's still present.
If I edit the relevant post in the active forum there is no BB code visible.

If I then go to the Custom BB Code in Admin CP there are errors..

PHP Code:

Cannot use string offset as an array on line 59 in /home/abc.org/forum/includes/class_bbcode.php(244) : eval()'d code
#0 /home/abc.org/forum/includes/class_bbcode.php(1782): handle_tabletag(Object(vB_BbCodeParser), 'column 1|column...', false)
#1 /home/abc.org/forum/includes/class_bbcode.php(1587): vB_BbCodeParser->handle_external('column 1|column...', false)
#2 /home/abc.org/forum/includes/class_bbcode.php(1042): vB_BbCodeParser->parse_array(Array, false, false, false)
#3 /home/abc.org/forum/includes/class_bbcode.php(563): vB_BbCodeParser->parse_bbcode('[table]column 1...', false, false, false)
#4 /home/abc.org/forum/admincp/bbcode.php(356): vB_BbCodeParser->do_parse('[table]column 1...', false, false, true, false, true, false, NULL, false, false)
#5 {main} 


I'm clearly not that bright when it comes to mysql so any advice greatly appreciated.