error when logging in:
Warning: Cannot modify header information – headers already sent by (output started at /home/#/public_html/wp-content/plugins/showhide-admin-bar-in-wp31/index.php:1) in /home/#/public_html/wp-login.php on line 353

Warning: Cannot modify header information – headers already sent by (output started at /home/#/public_html/wp-content/plugins/showhide-admin-bar-in-wp31/index.php:1) in /home/#/public_html/wp-login.php on line 365

Warning: Cannot modify header information – headers already sent by (output started at /home/#/public_html/wp-content/plugins/showhide-admin-bar-in-wp31/index.php:1) in /home/#/public_html/wp-includes/pluggable.php on line 737

Warning: Cannot modify header information – headers already sent by (output started at /home/#/public_html/wp-content/plugins/showhide-admin-bar-in-wp31/index.php:1) in /home/#/public_html/wp-includes/pluggable.php on line 738

Warning: Cannot modify header information – headers already sent by (output started at /home/#/public_html/wp-content/plugins/showhide-admin-bar-in-wp31/index.php:1) in /home/#/public_html/wp-includes/pluggable.php on line 739

Warning: Cannot modify header information – headers already sent by (output started at /home/#/public_html/wp-content/plugins/showhide-admin-bar-in-wp31/index.php:1) in /home/#/public_html/wp-includes/pluggable.php on line 934

what!?

blocked login until the plugin was disabled in the content file structure.

Warning: Cannot modify header information – headers already sent by (output started at /home/@/domains/@.com/public_html/wp-content/plugins/showhide-admin-bar-in-wp31/index.php:1) in /home/@/domains/@.com/public_html/wp-login.php on line 354

No posted support – only via email. No posted info at all ??