Getting error after changing wordpress theme

[vegahall07]

Hi Experts,


I am facing error after changing theme.


Warning: Cannot modify header information - headers already sent by (output started at /mounted-storage/home132/sub020/sc86635-XFJE/xyz.com/wp-content/themes/infiword/library/cleanup.php:7) in /mounted-storage/home132/sub020/sc86635-XFJE/xyz.com/wp-includes/pluggable.php on line 1207


after changing the theme i am unable to open admin page and getting above error.


Can someone plz help me ?


I am using infiword theme & wordpress 4.3.1



Regards
Vegahall07