SchematicSystem_Main/src/de/steamwar/schematicsystem/ExternalUpDownload.java

@@ -97,7 +97,7 @@ public class ExternalUpDownload {
                         name.append(".");
                     name.append(replaceString(schemName[i]));
                 }
-                String schematicName = name.substring(0, 60);
+                String schematicName = name.substring(0, Math.min(60, name.length()));
                 Schematic testSchem = Schematic.getSchemFromDB(schematicName, player.getUniqueId());
                 List<Byte> schemData = new ArrayList<>();
                 while (zipInputStream.available() == 1) {