Cannot install CB

What is wrong? I got this message when tried to upload and install from my host Strato:

Failed
001_pkg_communitybuilder_2.1.0+build.2016.12.26.23.12.30.f95e064fb.zip

Log hide
001_pkg_communitybuilder_2.1.0+build.2016.12.26.23.12.30.f95e064fb.zip is being installed.
001_pkg_communitybuilder_2.1.0+build.2016.12.26.23.12.30.f95e064fb.zip failed to install! hide

Index column size too large. The maximum column size is 767 bytes. SQL=CREATE TABLE `#__comprofiler_field_values` ( `fieldvalueid` int(11) NOT NULL auto_increment, `fieldid` int(11) NOT NULL DEFAULT 0, `fieldtitle` varchar(255) NOT NULL DEFAULT '', `fieldlabel` varchar(255) NOT NULL DEFAULT '', `fieldgroup` tinyint(1) NOT NULL DEFAULT 0, `ordering` int(11) NOT NULL DEFAULT 0, `sys` tinyint(4) NOT NULL DEFAULT 0, PRIMARY KEY (`fieldvalueid`), KEY `fieldid_ordering` (`fieldid`, `ordering`), KEY `fieldtitle_id` (`fieldtitle`, `fieldid`), KEY `fieldlabel_id` (`fieldlabel`, `fieldid`) )AUTO_INCREMENT=16, ENGINE=InnoDB
Paket Installieren: Bei der Installation der Erweiterung trat ein Fehler auf: com_comprofiler.zip

Your index key length limit is extremely small. It should have no issue with a varchar(255) + integer index. What version of database are you on? The database should also be InnoDB and your host needs to ensure innodb_large_prefix is working correctly.

The Database seems to be MySQL. There I cannot find any ~large_prefix.
Is there a MySQL Version of CB needed?

dcpnero wrote: The Database seems to be MySQL. There I cannot find any ~large_prefix.
Is there a MySQL Version of CB needed?

www.joomlapolis.com/documentation/276-community-builder/getting-started/18576-technical-requirements-for-community-builder

You need to contact your host and have them ensure innodb_large_prefix is working correctly as it does not appear to be. All your Joomla and CB database tables Storage Engine should be innodb (this can be changed in phpmyadmin).