error ban

Hi,
when i give ban IP i take some error:
Warning:fopen(/home/mysite/public_html/.htacces)[function.fopen]:faild to open stream:Ppermission denied in …..plugins/visitor-maps-extended-referer-field/visitor-maps-extended-referer.php on line 217
Warning fwrite()expect parameter 1 to be resource, boolean given in … /visitor-maps-extended-referer.php on line 218
Warning:fclose()expect parameter 1 to be resource, boolean given in … /visitor-maps-extended-referer.php on line 219

i dont need problems with internal error from .htacces and now plugin is deactivate.
i dont know what is this errors and what can i do

thx

https://wordpress.org/plugins/visitor-maps-extended-referer-field/