My b2evolution Version: Not Entered

I don’t know why this software does not work with out breaking anything.

It took me weeks and weeks to make this software work. When it is working it looks good but when it breaks it is so nasty.

Ok I tried every thing and now I gave-up. I created several brand new folders and upload every thing from scratch. Now the database it no longer working. These are some of the errors

/inc/MODEL/dataobjects/_dataobjectcache.class.php on line 121

Warning: Cannot modify header information - headers already sent by (output started at /inc/MODEL/dataobjects/_dataobjectcache.class.php:121) in public_html/shengo_3/default.php on line 28

Only variable references should be returned by reference dataobjects/_dataobjectcache.class.php on line 121

Another blog error
Only variable references should be returned by reference /inc/collections/model/_blogcache.class.php on line 139

Cannot modify header information - headers already sent by (output started at /home
inc/collections/model/_blogcache.class.php:139

another blog error

inc/MODEL/dataobjects/_dataobjectcache.class.php on line 121
Warning: Cannot modify header information - headers already sent by (output started at /home
Notice: Only variable references should be returned by reference in /home/madeine1/public_html/bloger/inc/MODEL/dataobjects/_dataobjectcache.class.php on line 121

Notice: Only variable references should be returned by reference in /bloger/inc/MODEL/dataobjects/_dataobjectcache.class.php on line 121

inc/MODEL/dataobjects/_dataobjectcache.class.php on line 121

inc/_core/model/dataobjects/_dataobjectlist2.class.php):
Fatal error: load_class(): Failed opening required core/_class4.funcs.php on line 40