Sufficient permissions to access /wp-admin or /class-wp-admin-bar.php on line 38

Hi Internet!

Recently I had change to domain that was being pointed to my server. As in, the original domain is no longer in service. olddomain.com no access so bought newdomain.com and ventured towards manually moving errrrythang…

So here is what I did:
1. Transfered all the files manually
2. Exported/Imported db
(At this point the website shows up all broken)
3. Finally updated the website URL in db wp_options > siteurl from old.com to new.com
(At this point the website shows up formatted correctly but all menu URLs point other websites)

Then it gave me the following errors:
On home Page – Notice: Undefined offset: 1 in /var/www/vhosts/pro-elobooster.com/httpdocs/wp-includes/class-wp-admin-bar.php on line 38
On Wp-Admin – You do not have sufficient permissions to access this page.

If I go back and redo the step 3 I’m back to seeing the broken website.

internal debate
The lazy me says “screw trouble shooting its a needle in a hay stack, build the website from scratch”
The non-lazy me says “keep on pushing until you find a solution.”

Thank you for all your help in advanced – this community rocks
S