1.4.8 -> 2.2.0 upgrade using migration tool issues

Upgraded the site fine, everything's working except the password reset feature outputs

Fatal error: Uncaught Exception: Error: Failed to parse address "" (0) in /srv/users/../apps/../public/system/library/mail.php:170 Stack trace: #0 /srv/users/../apps/../public/admin/controller/common/forgotten.php(48): Mail->send() #1 /srv/users/../apps/../public/system/engine/action.php(44): ControllerCommonForgotten->index() #2 /srv/users/../apps/../public/admin/controller/startup/router.php(26): Action->execute(Object(Registry), Array) #3 /srv/users/../apps/../public/system/engine/action.php(44): ControllerStartupRouter->index() #4 /srv/users/../apps/../public/system/engine/front.php(34): Action->execute(Object(Registry)) #5 /srv/users/../apps/../public/system/engine/front.php(29): Front->execute(Object(Action)) #6 /srv/users/../apps/../public/system/framework.php(99): Front->dispatch(Object(Action), Object(Action)) #7 /srv/users/../apps/../public/admin/index.php(22): require_once('/srv in /srv/users/../apps/../public/system/library/mail.php on line 170

The only other thing that doesn't work is manual user registration, password never seems to match what is created.

Any help would be greatly appreciated!

Having the same problem with the forgotten password request

Fatal error: Uncaught exception 'Exception' with message 'Error: Unknown column 'code' in 'field list'<br />Error No: 1054<br />UPDATE `oc_customer` SET code = 'fiSZVZMrNtPukMZCY5G7eXkhKRvwVqZeuVJcAIZz' WHERE LCASE(email) = 'rogerudall@gmail.com'' in /home/thebeeh1/public_html/system/library/db/mysqli.php:40 Stack trace: #0 /home/thebeeh1/public_html/system/library/db.php(16): DB\MySQLi->query('UPDATE `oc_cust...', Array) #1 /home/thebeeh1/public_html/catalog/model/account/customer.php(108): DB->query('UPDATE `oc_cust...') #2 [internal function]: ModelAccountCustomer->editCode('rogerudall@gmai...', 'fiSZVZMrNtPukMZ...') #3 /home/thebeeh1/public_html/system/storage/modification/system/engine/loader.php(150): call_user_func_array(Array, Array) #4 [internal function]: {closure}(Array) #5 /home/thebeeh1/public_html/system/engine/proxy.php(13): call_user_func(Object(Closure), Array) #6 /home/thebeeh1/public_html/catalog/controller/account/forgotten.php(21): Proxy->__call('editCode', Array) #7 /home/thebeeh1/public_html/catalog in /home/thebeeh1/public_html/system/library/db/mysqli.php on line 40

Any Ideas would be much appreciated

You will need to contact the author of the upgrade tool you used or start over with a different tool.

These you can try

Migrating your data from OpenCart Version 1.5.6.4 to Version 2.1.0.x
Migrating your data from OpenCart Version 2.1.0.x to Version 2.2.0.0 (TEST ONLY)

Other Reference: http://forum.opencart.com/viewtopic.php?f=181&t=159554