ERROR: illegal (overlong: 59 >30) value 'https://projects.apache.org/projects.html?category#big-data' for linkis in http://linkis.apache.org/doap.rdf

[Projects]

Error in http://linkis.apache.org/doap.rdf
Unexpected value: "https://projects.apache.org/projects.html?category#big-data";
The expected syntax is <category 
rdf:resource="http://projects.apache.org/category/{category}"; />
Each category should be listed in a separate tag