Fix installation

Author: IMS212

src/main/java/net/hypercubemc/iris_installer/Installer.java

@@ -175,7 +175,7 @@ public void start() {
         installDirectoryPanel.add(installDirectoryPicker);
 
         installAsModCheckbox = new JCheckBox("Install as Fabric Mod", false);
-        installAsModCheckbox.setToolTipText("If this box is checked, Iris will be installed to your mods \n folder," +
+        installAsModCheckbox.setToolTipText("If this box is checked, Iris will be installed to your mods \n folder, " +
                         "allowing you to use Iris with other Fabric mods!");
         installAsModCheckbox.setHorizontalTextPosition(SwingConstants.LEFT);
         installAsModCheckbox.setAlignmentX(Component.CENTER_ALIGNMENT);
@@ -406,13 +406,17 @@ public boolean installFromZip(File zip) {
 
             ZipEntry entry = zipIn.getNextEntry();
             // iterates over entries in the zip file
+            if (!installAsMod) {
+                getInstallDir().resolve("iris-reserved/").toFile().mkdir();
+            }
             while (entry != null) {
                 String entryName = entry.getName();
 
                 if (!installAsMod && entryName.startsWith("mods/")) {
                     entryName = entryName.replace("mods/", "iris-reserved/" + selectedVersion + "/");
                 }
 
+
                 File filePath = getInstallDir().resolve(entryName).toFile();
                 if (!entry.isDirectory()) {
                     // if the entry is a file, extracts it
@@ -433,7 +437,7 @@ public boolean installFromZip(File zip) {
             zipIn.close();
             return true;
         } catch (IOException e) {
-            e.getCause().printStackTrace();
+            e.printStackTrace();
             return false;
         }
     }