Split: Can't locate revslider.zip file in the download

Hi,

i always get Connection error! Please try again…
Warning: Cannot modify header information – headers already sent by (output started at /www/htdocs/w014d04b/artgraphy.at/wp-content/plugins/screets-chat/core/fn.init.php:453) in /www/htdocs/w014d04b/artgraphy.at/wp-includes/pluggable.php on line 1167 or Connection error! Please try again…
Warning: Cannot modify header information – headers already sent by (output started at /www/htdocs/w014d04b/artgraphy.at/wp-content/plugins/screets-chat/core/fn.init.php:453) in /www/htdocs/w014d04b/artgraphy.at/wp-includes/pluggable.php on line 1167

Warning: Cannot modify header information – headers already sent by (output started at /www/htdocs/w014d04b/artgraphy.at/wp-content/plugins/screets-chat/core/fn.init.php:453) in /www/htdocs/w014d04b/artgraphy.at/wp-includes/pluggable.php on line 1167

when try to use flex slider. Any ideas.
Also when trying to use google maps for showing the location – i just receive an error message showing google maps was not loaded correctly.

any ideas?

best regards Artgraphy