OK, after reenabling woocommerce, enabling wp-debug and trying to log in again, this is the error I am getting.
Fatal error: Allowed memory size of 41943040 bytes exhausted (tried to allocate 12288 bytes) in [/servername/directory/subdir/site]/public_html/[subdir]/wp-includes/Requests/IRI.php on line 384
Not sure where to start with this one. Should I be asking my ISP about increasing memory allocation for my wordpress server somehow, or is there a setting in the WP database affecting this or something.
thanks again