Have you checked these first?
Help us help you: include your environment details. We've made this easy for you. Use the Copy System Info button in Admin Panel › osAwesome › Diagnostics, then paste below.
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Two quick checks before posting: try clearing your browser cache, and press SHIFT+O on any Staff Panel page to enter Safe Mode (a stock osTicket with no enhancements). If the problem still shows in Safe Mode, it's in osTicket itself, not osTicket Awesome. But let us know about the issue either way.
Help us help you: include your environment details. We've made this easy for you. Use the Copy System Info button in Admin Panel › osAwesome › Diagnostics, then paste below.
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I am receiving the follow "error" code beside the Dark Mode enablement slider. It does not appear in the OSTicket Awesome demo environment.

This is actually caused by a typo in their code. Its an easy fix. Open /include/staff/profile.inc.php and edit line 557, from
<input type="radio" id="dark_mode_radio" name="dark_mode" class="switch nullable" <? echo $staff->getExtraAttr("dark_mode", "false") == "on" ? "checked='checked'" : "" ?>>
to
<input type="radio" id="dark_mode_radio" name="dark_mode" class="switch nullable" <?php echo $staff->getExtraAttr("dark_mode", "false") == "on" ? "checked='checked'" : "" ?>>
(They are missing the "php" tag before the echo)
Thank you!