error when upgrading to 4.4.3

Hi, just upgraded to 4.4.3 and also tried new installation with old database and i kepp on getting this error:

[2018-06-03 10:09:58] production.ERROR: ErrorException [0] : /home/admin/web/invoice3.selowa.co.za/public_html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Lexer/DOMLex.php [Line 257] => Undefined property: DOMAttr::$name (View: /home/admin/web/invoice3.selowa.co.za/public_html/resources/views/invoices/email.blade.php) (View: /home/admin/web/invoice3.selowa.co.za/public_html/resources/views/invoices/email.blade.php) {“context”:“PHP”,“user_id”:1,“account_id”:1,“user_name”:“My-User-Name”,“method”:“GET”,“user_agent”:“Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36”,“locale”:“en”,“ip”:“159.203.182.237”,“count”:1,“is_console”:“no”,“is_api”:“no”,“db_server”:“mysql”,“url”:“invoices/53/edit”} []

Also Got This Error When Trying to Backup To Start Afresh:

[2018-06-03 10:29:37] production.ERROR: ErrorException [0] : /home/admin/web/invoice3.selowa.co.za/public_html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Lexer/DOMLex.php [Line 257] => Undefined property: DOMAttr::$name {“context”:“PHP”,“user_id”:1,“account_id”:1,“user_name”:“Confidence Selowa”,“method”:“GET”,“user_agent”:“Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36”,“locale”:“en”,“ip”:“159.203.182.237”,“count”:3,“is_console”:“no”,“is_api”:“no”,“db_server”:“mysql”,“url”:“settings/templates_and_reminders”} []
[2018-06-03 10:30:11] production.ERROR: ErrorException [0] : /home/admin/web/invoice3.selowa.co.za/public_html/vendor/laravel/framework/src/Illuminate/Support/Collection.php [Line 1563] => Undefined offset: 0 (View: /home/admin/web/invoice3.selowa.co.za/public_html/resources/views/export/clients.blade.php) (View: /home/admin/web/invoice3.selowa.co.za/public_html/resources/views/export/clients.blade.php) {“context”:“PHP”,“user_id”:1,“account_id”:1,“user_name”:“Confidence Selowa”,“method”:“POST”,“user_agent”:“Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36”,“locale”:“en”,“ip”:“159.203.182.237”,“count”:4,“is_console”:“no”,“is_api”:“no”,“db_server”:“mysql”,“url”:“export”} []

I’m not sure, it’s the first time I’ve seen this error.

You may want to first get a clean install working and then bring over your database and .env file.