What mean? :
You are viewing an HTML version of the XML OAI response. To see the underlying
use your web browsers view source option. More information about this XSLT is
the bottom of the page.
Datestamp of response 2015-09-23T12:11:22Z
Request URL https://agrisost.reduc.edu.cu/index.php/index/oai
The request could not be completed due to the following error or errors.
Error Code badVerb
Illegal OAI verb
How to solve it?
The error is telling you that an argument is missing to your request. You need to specify what information you want to get. See this documentation to understand how to request data using OAI: Open Archives Initiative - Protocol for Metadata Harvesting - v.2.0
An example would be to request all sets in your install, it would look like this: http://agrisost.reduc.edu.cu/index.php/index/oai?verb=ListSets If you go to that page, you can click on some links to access more data, and then you can also understand how to build OAI requests for OJS.