Bug

Hello,

I implemented the map which is working. But after saving/publishing the page I see a bug. If I reload the page, I can see my backend normally again and the implementation works, except adding a text.

Bug:

Warning: Cannot modify header information - headers already sent by (output started at /homepages/14/d895088365/htdocs/clickandbuilds/[page name]/wp-content/plugins/osm/osm_map_v3/osm-sc-osm_map_v3_backend.php:1) in /homepages/14/d895088365/htdocs/clickandbuilds/[page name]/wp-admin/post.php on line 231

Warning: Cannot modify header information - headers already sent by (output started at /homepages/14/d895088365/htdocs/clickandbuilds/[page name]/wp-content/plugins/osm/osm_map_v3/osm-sc-osm_map_v3_backend.php:1) in /homepages/14/d895088365/htdocs/clickandbuilds/[page name]/wp-includes/pluggable.php on line 1416

Warning: Cannot modify header information - headers already sent by (output started at /homepages/14/d895088365/htdocs/clickandbuilds/[page name]/wp-content/plugins/osm/osm_map_v3/osm-sc-osm_map_v3_backend.php:1) in /homepages/14/d895088365/htdocs/clickandbuilds/[page name]/wp-includes/pluggable.php on line 1419

Do you have any idea?

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