phpBB and wordpress errors

Hi,

I am using a method from
https://www.happypoet.com/wphpbb/

but I am hving some problems during integration. for some reasons I am getting following errors:

1. On main blog I am getting
WordPress database error: [Table ‘jaslee_phpbb.wp_users’ doesn’t exist]
SELECT * FROM wp_users WHERE user_login = ‘admin’

WordPress database error: [Table ‘jaslee_phpbb.wp_posts’ doesn’t exist]
SELECT DISTINCT * FROM wp_posts WHERE 1=1 AND post_date_gmt <= ‘2006-09-30 11:47:59’ AND (post_status = “publish”) AND post_status != “attachment” GROUP BY wp_posts.ID ORDER BY post_date DESC LIMIT 0, 10

There is no method explained in the file how to create these tables. I think these should have been created once I activate the plugin?

seconds error I get:
WordPress database error: [Table ‘jaslee_phpbb.wp_users’ doesn’t exist]
SELECT * FROM wp_users WHERE user_login = ‘admin’

WordPress database error: [Table ‘jaslee_phpbb.wp_users’ doesn’t exist]
SELECT * FROM wp_users WHERE user_login = ‘admin’

Warning: Cannot modify header information – headers already sent by (output started at /usr/home/jaslee/public_html/blog/wp-includes/wp-db.php:104) in /usr/home/jaslee/public_html/blog/wp-includes/pluggable-functions.php on line 272

It seems the same as error one except for the table differences. am I missing something?

thanks.