Returned Errors for CISA Snort Rules

[chris <chris () shadowserver org>]

Hello,
I've been trying to implement Snort rules provided by the CISA but I'm 
receiving errors when the classtype field contains the value "http-uri" 
or "http-header"  (examples provided below). These are not default Snort 
classtypes. Can someone provide some insight on how to either define 
these classtypes OR provide a good alternative classtype?
Thanks in advance for any insight you can provide!

Best,
Chris

alert tcp any any -> any $HTTP_PORTS (msg:"NANOCORE:HTTP GET URI 
contains 'FAD00979338'"; sid:00000000; rev:1; 
flow:established,to_server; content:"GET"; http_method; 
content:"getPluginName.php?PluginID=FAD00979338"; fast_pattern; 
http_uri; classtype:http-uri; metadata:service http;)

alert tcp any any -> any $HTTP_PORTS (msg:"HTTP Client Header contains 
'host|3a 20|polkiuj.top'"; sid:00000000; rev:1; 
flow:established,to_server; flowbits:isnotset,<unique_ID>.tagged; 
content:"host|3a 20|polkiuj.top|0d 0a|"; http_header; fast_pattern:only; 
flowbits:set,<unique_ID>.tagged; tag:session,10,packets; 
classtype:http-header; metadata:service http;)
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