Can’t log in to my wordpress admin panel

I can’t log into my admin page. There are many lines of code. Like this but many more similar lines:

‘Warning: A non-numeric value encountered in /home/ellagu5/public_html/wp-content/plugins/photospace-responsive/photospace-responsive.php on line 273

Warning: Cannot modify header information – headers already sent by (output started at /home/ellagu5/public_html/wp-content/plugins/photospace-responsive/photospace-responsive.php:273) in /home/ellagu5/public_html/wp-login.php on line 390

Warning: Cannot modify header information – headers already sent by (output started at /home/ellagu5/public_html/wp-content/plugins/photospace-responsive/photospace-responsive.php:273) in /home/ellagu5/public_html/wp-login.php on line 403

Warning: Cannot modify header information – headers already sent by (output started at /home/ellagu5/public_html/wp-content/plugins/photospace-responsive/photospace-responsive.php:273) in /home/ellagu5/public_html/wp-includes/pluggable.php on line 920

Warning: Cannot modify header information – headers already sent by (output started at /home/ellagu5/public_html/wp-content/plugins/photospace-responsive/photospace-responsive.php:273) in /home/ellagu5/public_html/wp-includes/pluggable.php on line 921’

When i try to log in it won’t let me. I can not edit anything as I can’t log in to look at it.

Please advise.

WP.com: Yes
Correct account: Yes

The blog I need help with is: ellaguruart.wordpress.com

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I posted this query elsewhere on these forums and was told to post on the photospace-responsive forum. I was also told to delete the plugin in my host’s control panel, but when I did that, all my photo ‘galleries’ broke so I had to restore photospace-responsive. But now again I can’t log into my wordpress admin page.

Thank you

The page I need help with: [log in to see the link]