Index content file not working

That is whar i get whem run indexation items

Drupal\search_api_solr\SearchApiSolrException while indexing: Solr endpoint http://localhost:8983/ unreachable or returned unexpected response code (400). {"responseHeader":{"status":400,"QTime":3},"error":{"metadata":["error-class","org.apache.solr.common.SolrException","root-error-class","org.apache.lucene.util.BytesRefHash$MaxBytesLengthExceededException"],"msg":"Exception writing document id 4nodbi-solr_index-entity:node/56:en to the index; possible analysis error: Document contains at least one immense term in field=\"sm_saa_field_pdf\" (whose UTF8 encoding is longer than the max length 32766), all of which were skipped. Please correct the analyzer to not produce such terms. The prefix of the first immense term is: '[10, 81, 117, 111, 116, 105, 100, 105, 101, 110, 32, 100, 105, 103, 105, 116, 97, 108, 32, 100, 101, 32, 108, 97, 32, 77, 97, 80, 32, 110]...', original message: bytes can be at most 32766 in length; got 132573. Perhaps the document has an indexed string field (solr.StrField) which is too large","code":400}} in Drupal\search_api_solr\SolrConnector\SolrConnectorPluginBase->handleHttpException() (line 894 of C:\laragon\www\d8\web\modules\contrib\search_api_solr\src\SolrConnector\SolrConnectorPluginBase.php).