we are unable to register the users in any of the sites in alfresco.Please kindly help.
Vinutha M P
Probably you are affected by this issue:
GitHub - keensoft/alf-21940-repo: Alfresco SOLR issue when using multiple locales
[ALF-21940] cm:lastName (and perhaps other fields as well) are locale sensitive on searches with Solr6 even though it is…
Agree with Angel, this looks like it is solr related. You should verify that solr is working correctly for other aspects of your system (like full-text search), and, if not, resolve that issue. You can try clearing your your solr model directory. Worst case would be a full reindex, but clearing out the model directory might do it.
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