Fix parameter of calling self.dataStore.get() and warning info during parser (#13068)

### What problem does this PR solve?

Fix parameter of calling self.dataStore.get() and warning info during
parser

https://github.com/infiniflow/ragflow/issues/13036

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

rag/app/table.py

@@ -304,9 +304,8 @@ class Excel(ExcelParser):
 def trans_datatime(s):
     try:
         return datetime_parse(s.strip()).strftime("%Y-%m-%d %H:%M:%S")
-    except Exception as e:
-        logging.warning(f"Failed to parse date from {s}, error: {e}")
-        pass
+    except Exception:
+        return None
 
 
 def trans_bool(s):

rag/nlp/search.py

@@ -627,7 +627,7 @@ class Dealer:
             if cid in id2idx:
                 chunks[id2idx[cid]]["similarity"] += sim
                 continue
-            chunk = self.dataStore.get(cid, idx_nms, kb_ids)
+            chunk = self.dataStore.get(cid, idx_nms[0], kb_ids)
             if not chunk:
                 continue
             d = {
@@ -677,7 +677,7 @@ class Dealer:
 
         vector_size = 1024
         for id, cks in mom_chunks.items():
-            chunk = self.dataStore.get(id, idx_nms, [ck["kb_id"] for ck in cks])
+            chunk = self.dataStore.get(id, idx_nms[0], [ck["kb_id"] for ck in cks])
             d = {
                 "chunk_id": id,
                 "content_ltks": " ".join([ck["content_ltks"] for ck in cks]),