diff --git a/build-plugin.sh b/build-plugin.sh
index 925847f..8793783 100755
--- a/build-plugin.sh
+++ b/build-plugin.sh
@@ -2,7 +2,7 @@
 set -eu
 
 PLUGIN="u-navigator"
-VERSION="2026.06.23.r006"
+VERSION="2026.06.23.r007"
 PKG_DIR="packages"
 WORK_DIR=".plugin-build"
 PKG_NAME="${PLUGIN}-${VERSION}.tgz"
diff --git a/packages/u-navigator-2026.06.23.r006.tgz b/packages/u-navigator-2026.06.23.r006.tgz
deleted file mode 100644
index a66c4e1..0000000
Binary files a/packages/u-navigator-2026.06.23.r006.tgz and /dev/null differ
diff --git a/packages/u-navigator-2026.06.23.r007.tgz b/packages/u-navigator-2026.06.23.r007.tgz
new file mode 100644
index 0000000..0acadf2
Binary files /dev/null and b/packages/u-navigator-2026.06.23.r007.tgz differ
diff --git a/plugin-root/usr/local/emhttp/plugins/u-navigator/api/common.php b/plugin-root/usr/local/emhttp/plugins/u-navigator/api/common.php
index afe2d8d..89a3c42 100644
--- a/plugin-root/usr/local/emhttp/plugins/u-navigator/api/common.php
+++ b/plugin-root/usr/local/emhttp/plugins/u-navigator/api/common.php
@@ -32,6 +32,14 @@ function unav_read_only(): bool {
     return getenv('U_NAV_READ_ONLY') === '1';
 }
 
+function unav_function_available(string $name): bool {
+    if (!function_exists($name)) {
+        return false;
+    }
+    $disabled = array_map('trim', explode(',', (string)ini_get('disable_functions')));
+    return !in_array($name, $disabled, true);
+}
+
 function unav_json($payload, int $status = 200): void {
     http_response_code($status);
     header('Content-Type: application/json; charset=utf-8');
diff --git a/plugin-root/usr/local/emhttp/plugins/u-navigator/api/job.php b/plugin-root/usr/local/emhttp/plugins/u-navigator/api/job.php
index 4fb5d87..dfe7275 100644
--- a/plugin-root/usr/local/emhttp/plugins/u-navigator/api/job.php
+++ b/plugin-root/usr/local/emhttp/plugins/u-navigator/api/job.php
@@ -35,11 +35,22 @@ unav_job_write($job);
 
 $worker = __DIR__ . '/job_worker.php';
 $php = is_executable('/usr/bin/php') ? '/usr/bin/php' : (PHP_BINARY ?: 'php');
-if (function_exists('exec') && is_file($worker)) {
-    exec(escapeshellarg($php) . ' ' . escapeshellarg($worker) . ' ' . escapeshellarg($id) . ' > /dev/null 2>&1 &');
-} else {
-    require $worker;
+$started = false;
+
+if (unav_function_available('exec') && is_file($worker)) {
+    try {
+        $exitCode = 0;
+        @exec(escapeshellarg($php) . ' ' . escapeshellarg($worker) . ' ' . escapeshellarg($id) . ' > /dev/null 2>&1 &', $output, $exitCode);
+        $started = ($exitCode === 0);
+    } catch (Throwable $error) {
+        $started = false;
+    }
+}
+
+if (!$started) {
+    require_once $worker;
     unav_run_job($id);
+    $job = unav_job_read($id);
 }
 
 unav_json($job, 202);
diff --git a/server/public/app.js b/server/public/app.js
index ae1ff1a..3b52f25 100644
--- a/server/public/app.js
+++ b/server/public/app.js
@@ -826,10 +826,17 @@ function startResizeWindow(event, win) {
 
 async function api(url, options) {
   const response = await fetchChecked(url, options);
+  const text = await response.text();
   try {
-    return await response.json();
+    return JSON.parse(text);
   } catch (error) {
-    recordDebug('api.json.error', { url, error: serializeError(error) });
+    recordDebug('api.json.error', {
+      url,
+      status: response.status,
+      contentType: response.headers.get('content-type'),
+      body: text.slice(0, 2000),
+      error: serializeError(error)
+    });
     throw error;
   }
 }
@@ -837,12 +844,19 @@ async function api(url, options) {
 async function fetchChecked(url, options) {
   recordDebug('fetch.request', { url, method: options?.method || 'GET' });
   const response = await fetch(url, options);
-  recordDebug('fetch.response', { url, status: response.status, ok: response.ok });
+  recordDebug('fetch.response', {
+    url,
+    status: response.status,
+    ok: response.ok,
+    contentType: response.headers.get('content-type')
+  });
   if (!response.ok) {
     let message = `${response.status} ${response.statusText}`;
+    const text = await response.text();
     try {
-      message = (await response.json()).error || message;
+      message = JSON.parse(text).error || message;
     } catch {}
+    recordDebug('fetch.error.body', { url, status: response.status, body: text.slice(0, 2000) });
     throw new Error(message);
   }
   return response;
diff --git a/u-navigator.plg b/u-navigator.plg
index dd18995..620221a 100644
--- a/u-navigator.plg
+++ b/u-navigator.plg
@@ -1,7 +1,7 @@
 <!DOCTYPE PLUGIN [
 <!ENTITY name "u-navigator">
 <!ENTITY author "michael">
-<!ENTITY version "2026.06.23.r006">
+<!ENTITY version "2026.06.23.r007">
 <!ENTITY package "&name;-&version;.tgz">
 ]>
 <PLUGIN name="&name;" author="&author;" version="&version;" pluginURL="https://git.casaderoll.de/michael/Unraid-Navigator/raw/branch/main/u-navigator.plg">
@@ -14,7 +14,7 @@
 
 <FILE Name="/boot/config/plugins/&name;/&package;">
 <URL>https://git.casaderoll.de/michael/Unraid-Navigator/raw/branch/main/packages/&package;</URL>
-<MD5>6079415588844c2e4a3f8aa43f949bd4</MD5>
+<MD5>c9e2b618f5907747315c5f17e80b132f</MD5>
 </FILE>
 
 <FILE Run="/bin/bash">