diff --git a/src/main/java/golanganalyzerextension/StructureManager.java b/src/main/java/golanganalyzerextension/StructureManager.java
index bdf2f2f..d5f7538 100644
--- a/src/main/java/golanganalyzerextension/StructureManager.java
+++ b/src/main/java/golanganalyzerextension/StructureManager.java
@@ -58,11 +58,11 @@ public void modify() {
 				GolangDatatype go_datatype=datatype_holder.get_go_datatype_by_key(key);
 				go_datatype.modify(datatype_holder);
 
-				go_bin.add_datatype(go_datatype.get_category_path(), go_datatype.get_datatype());
+				go_bin.add_datatype(go_datatype.get_category_path(), go_datatype.get_struct_datatype());
 
 				go_bin.set_comment(go_datatype.get_addr(), ghidra.program.model.listing.CodeUnit.PLATE_COMMENT, make_datatype_comment(go_datatype, datatype_holder));
 			}catch(Exception e) {
-				Logger.append_message(String.format("Error: %s", e.getMessage()));
+				Logger.append_message(String.format("Failed to add datatype to manager: message=%s", e.getMessage()));
 			}
 		}
 	}
diff --git a/src/main/java/golanganalyzerextension/gobinary/GolangBinary.java b/src/main/java/golanganalyzerextension/gobinary/GolangBinary.java
index 21eb006..6d3e890 100644
--- a/src/main/java/golanganalyzerextension/gobinary/GolangBinary.java
+++ b/src/main/java/golanganalyzerextension/gobinary/GolangBinary.java
@@ -384,7 +384,7 @@ public String read_string(Address addr, int size) throws BinaryAccessException,
 			int tmp_len=str.length();
 			str=str.replaceAll("[^\\x09\\x0a\\x0d\\x20-\\x7e]", "");
 			if(str.length()!=tmp_len) {
-				Logger.append_message(String.format("Invalid char: %x %x %s", addr.getOffset(), size, str));
+				// Logger.append_message(String.format("Invalid char: %x %x %s", addr.getOffset(), size, str));
 			}
 			return str;
 		} catch (MemoryAccessException e) {
@@ -537,7 +537,7 @@ public boolean compare_register(Register cmp1, Register cmp2) {
 
 	public void create_label(Address addr, String str) throws BinaryAccessException {
 		try {
-			str=str.replace(" ", "_");
+			str=str.replaceAll("[ \n\t]", "_");
 			program.getSymbolTable().createLabel(addr, str, ghidra.program.model.symbol.SourceType.USER_DEFINED);
 		} catch (IllegalArgumentException | InvalidInputException e) {
 			throw new BinaryAccessException(String.format("Create label: addr=%s, label=%s", addr, str));
diff --git a/src/main/java/golanganalyzerextension/string/StringExtractor.java b/src/main/java/golanganalyzerextension/string/StringExtractor.java
index 436e922..068ef88 100644
--- a/src/main/java/golanganalyzerextension/string/StringExtractor.java
+++ b/src/main/java/golanganalyzerextension/string/StringExtractor.java
@@ -73,7 +73,7 @@ private void search_memory() {
 
 					search_addr=go_bin.get_address(search_addr, pointer_size);
 				} catch (InvalidBinaryStructureException e) {
-					Logger.append_message(String.format("Failed to search string in memory: message=%s", e.getMessage()));
+					// Logger.append_message(String.format("Failed to search string in memory: message=%s", e.getMessage()));
 				} catch (BinaryAccessException e) {
 					return;
 				}
@@ -190,7 +190,7 @@ private void check_insts(Instruction inst) {
 						GolangString str=GolangString.create_string(go_bin, data, string_len);
 						string_map.put(data.getOffset(), str);
 					} catch (InvalidBinaryStructureException e) {
-						Logger.append_message(String.format("Failed to get string: %s", e.getMessage()));
+						// Logger.append_message(String.format("Failed to get string: %s", e.getMessage()));
 					}
 				}
 			} else if (is_move_reg_to_addr_reg_scalar(check_inst)) {
@@ -202,7 +202,7 @@ private void check_insts(Instruction inst) {
 						GolangString str=GolangString.create_string(go_bin, data, string_len);
 						string_map.put(data.getOffset(), str);
 					} catch (InvalidBinaryStructureException e) {
-						Logger.append_message(String.format("Failed to get string: %s", e.getMessage()));
+						// Logger.append_message(String.format("Failed to get string: %s", e.getMessage()));
 					}
 				}
 			} else if (check_inst.getFlowType().isCall() || check_inst.getFlowType().isTerminal()) {
@@ -213,7 +213,7 @@ private void check_insts(Instruction inst) {
 							GolangString str=GolangString.create_string(go_bin, arg_str_addr, string_len);
 							string_map.put(arg_str_addr.getOffset(), str);
 						} catch (InvalidBinaryStructureException e) {
-							Logger.append_message(String.format("Failed to get string: %s", e.getMessage()));
+							// Logger.append_message(String.format("Failed to get string: %s", e.getMessage()));
 						}
 					}
 				}