MailPoet Broken

Will not “insert posts” into email template: just spins and says “inserting posts”. Tried to uninstall and also used the “uninstall ZIP” file from your website. Re-installed MailPoet again… and again, Now I get several SQL errors:

WordPress database error: [Table ‘liv1523611570154.wp_wysija_email’ doesn’t exist]
SHOW FULL COLUMNS FROM wp_wysija_email

WordPress database error: [Table ‘liv1523611570154.wp_wysija_campaign_list’ doesn’t exist]
DELETE FROM wp_wysija_campaign_list WHERE campaign_id=””

This is just a few of the errors.

https://ww.wp.xz.cn/plugins/wysija-newsletters/