Fix the fulltextsearch in Nextcloud

[a3linux]

We saw this error message in Nextcloud.log
{"reqId":"UbgUxX6B4GUJjc5wQDp3","level":2,"time":"2023-11-28T05:21:58+00:00","remoteAddr":"119.74.86.161","user":"allen","app":"no app in context","method":"GET","url":"/apps/fulltextsearch/v1/search?request=%7B%22providers%22%3A%5B%22files%22%5D%2C%22options%22%3A%7B%22files_local%22%3A%220%22%2C%22files_extension%22%3A%22%22%7D%2C%22search%22%3A%22lou%22%2C%22page%22%3A1%7D","message":"500 - {"request":{"providers":["files"],"author":"allen","search":"lou","empty_search":false,"page":1,"size":10,"parts":["comments"],"queries":[],"options":{"files_local":"0","files_extension":""},"metatags":[],"subtags":[],"tags":[]},"version":"27.0.2","status":-1,"exception":"Elastic\\Elasticsearch\\Exception\\ClientResponseException","message":"401 Unauthorized: {\"error\":{\"root_cause\":[{\"type\":\"security_exception\",\"reason\":\"missing authentication credentials for REST request [\/homecloud-nextcloud\/_search?from=0&size=10&_source_excludes=content]\",\"header\":{\"WWW-Authenticate\":[\"Basic realm=\\\"security\\\" charset=\\\"UTF-8\\\"\",\"ApiKey\"]}}],\"type\":\"security_exception\",\"reason\":\"missing authentication credentials for REST request [\/homecloud-nextcloud\/_search?from=0&size=10&_source_excludes=content]\",\"header\":{\"WWW-Authenticate\":[\"Basic realm=\\\"security\\\" charset=\\\"UTF-8\\\"\",\"ApiKey\"]}},\"status\":401}"}","userAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1 Safari/605.1.15","version":"27.1.3.2","data":[]}

And the fulltextsearch in Nextcloud UI does not work.