database problems

I have created a sub domain to create a staging site
https://lalehomeskalkan.com Primary Domain
https://staging.lalehomeskalkan.com Sub Domain

I then installed a blank WordPress site and then use MigrateGuru plugin to clone existing site. This completed successfully but it has killed my live site with cannot connect to database errors.
I’ve checked against the MySQL details in CPanel and it would appear that the original details are in the new wpconfig.php file. I’ve tried to rectify but I got:

9LEC6qZ_users: Table 'ladmin_wp282.9LEC6qZ_users' doesn't exist
9LEC6qZ_usermeta: Table 'ladmin_wp282.9LEC6qZ_usermeta' doesn't exist
9LEC6qZ_posts: Table 'ladmin_wp282.9LEC6qZ_posts' doesn't exist
9LEC6qZ_comments: Table 'ladmin_wp282.9LEC6qZ_comments' doesn't exist
9LEC6qZ_links: Table 'ladmin_wp282.9LEC6qZ_links' doesn't exist
9LEC6qZ_options: Table 'ladmin_wp282.9LEC6qZ_options' doesn't exist
9LEC6qZ_postmeta: Table 'ladmin_wp282.9LEC6qZ_postmeta' doesn't exist
9LEC6qZ_terms: Table 'ladmin_wp282.9LEC6qZ_terms' doesn't exist
9LEC6qZ_term_taxonomy: Table 'ladmin_wp282.9LEC6qZ_term_taxonomy' doesn't exist
9LEC6qZ_term_relationships: Table 'ladmin_wp282.9LEC6qZ_term_relationships' doesn't exist
9LEC6qZ_termmeta: Table 'ladmin_wp282.9LEC6qZ_termmeta' doesn't exist
9LEC6qZ_commentmeta: Table 'ladmin_wp282.9LEC6qZ_commentmeta' doesn't exist

Can anyone please help?

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