Media Manager

i have two sites with the same error...
the Media Manager doesn´t work on this sites.
i can not create a folder and upload any pictures.

here are some infos of the Debug console :
TypeError: Object [object Object] has no method 'collapse'
#6 http://gig-hair.com/de/magazin/Dashboard/Schreiben?blogid=5:2265:16
#5 http://gig-hair.com/de/magazin/Dashboard/Schreiben?blogid=5:2265:16 HTMLDocument.()
#4 http://gig-hair.com/components/com_community/assets/joms.jquery-1.8.1.min.js:14:8920 bZ()
#3 http://gig-hair.com/components/com_community/assets/joms.jquery-1.8.1.min.js:14:9886 Object.b7.fireWith()
#2 http://gig-hair.com/components/com_community/assets/joms.jquery-1.8.1.min.js:14:3713 Function.bG.extend.ready()
#1 http://gig-hair.com/components/com_community/assets/joms.jquery-1.8.1.min.js:14:809 HTMLDocument.aF()

TypeError: Cannot call method 'meta' of undefined
#11 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:42537:60
#10 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:42537:60 Class.{self} modalActivate()
#9 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:21190:22 HTMLDivElement.()
#8 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:4622:9 HTMLDivElement.jQuery.event.dispatch()
#7 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:4290:28 HTMLDivElement.elemData.handle()
#6 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:4531:12 Object.jQuery.event.trigger()
#5 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:5233:17 HTMLDivElement.()
#4 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:391:23 Function.jQuery.extend.each()
#3 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:140:17 jQuery.fn.jQuery.each()
#2 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:5232:15 jQuery.fn.extend.trigger()
#1 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:22215:16 Class.$.Class.trigger()

TypeError: Cannot call method 'place' of undefined
#5 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:42527:24
#4 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:42527:24 Class.{modalUploaderButton} click()
#3 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:21190:22 HTMLButtonElement.()
#2 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:4622:9 HTMLDivElement.jQuery.event.dispatch()
#1 http://gig-hair.com/media/com_easyblog/scripts/easyblog-3.9.15218.static.js:4290:28 HTMLDivElement.elemData.handle()