PHP Version : 5.5.30

MySQL Version : 5.5.44-0+deb7u1-log

Server Information : Linux info 3.0 #1337 SMP Tue Jan 01 00:00:00 CEST 2000 all GNU/Linux

Fix jQuery? : Yes

Load JEvents Bootstrap CSS? : Yes

Load JEvents Bootstrap JS? : Yes

Max Input Vars ? : 1000

Club code set? : No  

User Agent : Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/537.78.2 (KHTML, like Gecko) Version/6.1.6 Safari/537.78.2  

Joomla : 3.4.4

component_com_jevents : 3.4.0

module_mod_jevents_cal : 3.4.0

module_mod_jevents_custom : 3.4.0

module_mod_jevents_filter : 3.4.0

module_mod_jevents_latest : 3.4.0

module_mod_jevents_legend : 3.4.0

module_mod_jevents_switchview : 3.4.0

plugin_content_jevents : 3.4.0

plugin_finder_jevents : 3.4.0 (not enabled)

plugin_search_eventsearch : 3.4.0

plugin_system_gwejson : 3.4.0

Hello, I imported a calendar via ics. When I do this for the first time the import works but when I try to refresh with the green update button an error message occurs: Not a valid VCALENDAR data file: The following URL is not complete any more, it ends after 255 characters. Is there any limitation for the URL-length? And how can this be changed?
Thank you for your help.