We are applying to be a member of OAI. In the validation page
(http://www.openarchives.org/Register/ValidateSite), we take the
Checking Identify response
REQUEST https://dergipark.org.tr/tr/pub/jcode?verb=Identify GET
WARN Malformed response: undefined entity at line 7, column 43, byte
311 at /usr/lib64/perl5/vendor_perl/XML/Parser.pm line 187. . The most
common reason for malformed responses is illegal bytes in UTF-8
streams (e.g. the inclusion of Latin1 characters with codes>127
without creating proper UTF-8 mutli-byte sequences). You might find
the utf8conditioner, found on the OAI tools page helpful for debugging.
FAIL Failed to parse Identify response
FAIL ABORT: Failed to parse Identify response from server at base URL
The OAI-PMH data provider with base URL
https://dergipark.org.tr/tr/pub/jcode has failed initial validation.
Problems reported must be corrected before validation can continue.
Could you please guide us in this evaluation process?