I installed the 1.7 and 2.5 versions of JF Texturia, and both get the same error:

  Notice: Undefined index: 1 in C: xampp htdocs texturia2 templates jf_texturia scripts php mainmenu.php on line 47
Notice: Use of undefined constant add_css - Assumed 'add_css' in C: xampp htdocs texturia2 plugins content sexybookmarks sexybookmarks.php on line 49

Notice: Undefined property: stdClass :: $ text in C: xampp htdocs texturia2 plugins content sexybookmarks sexybookmarks.php on line 123

Notice: Undefined property: stdClass :: $ text in C: xampp htdocs texturia2 plugins content sexybookmarks sexybookmarks.php on line 59

Notice: Use of undefined constant add_css - Assumed 'add_css' in C: xampp htdocs texturia2 plugins content sexybookmarks sexybookmarks.php on line 49

Notice: Undefined property: stdClass :: $ text in C: xampp htdocs texturia2 plugins content sexybookmarks sexybookmarks.php on line 123

Notice: Undefined property: stdClass :: $ text in C: xampp htdocs texturia2 plugins content sexybookmarks sexybookmarks.php on line 59

Notice: Undefined property: ContentViewFeatured :: $ category in C: xampp htdocs texturia2 templates jf_texturia html com_content featured default.php on line 80

Notice: Trying to get property of non-object in C: xampp htdocs texturia2 templates jf_texturia html com_content featured default.php on line 80

You should search in google to find how to turn off "Notice" in php.