Tried to add a new field and got this error

I tried to add a new Text Field to one of my tabs and got the following error.

moscomprofilerFields::store failed: CBSQLupgrader::changeColumn (ADD) of Table #__comprofiler Column cb_water failed with SQL error: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. You have to change some columns to TEXT or BLOBs SQL=ALTER TABLE `jos_comprofiler`\n ADD `cb_water` varchar(255) DEFAULT NULL Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. You have to change some columns to TEXT or BLOBs SQL=ALTER TABLE `jos_comprofiler`\n ADD `cb_water` varchar(255) DEFAULT NULL

Any idea?

You have too many fields (which are database columns) and have reached the maximum size allowed by MYSQL. Please search as Beat has provided I believe 2 possible solutions or you could remove some fields.