Security check failure on unencrypted album id 52

If I am editing an album and increase the pagesize from 10 to anything larger, it fails with the error: Security check failure on unencrypted album id 52 followed by

<p>This message was triggered by <b>wp-photo-album-plus</b>.</p><p>Call stack:</p><ol><li><code>wp_die()</code><br><span class="qm-info qm-supplemental">wp-content/plugins/wp-photo-album-plus/wppa-encrypt.php:183</span></li><li><code>wppa_decrypt_album()</code><br><span class="qm-info qm-supplemental">wp-content/plugins/wp-photo-album-plus/wppa-input.php:420</span></li><li><code>wppa_get()</code><br><span class="qm-info qm-supplemental">wp-content/plugins/wp-photo-album-plus/wppa-album-admin-autosave.php:125</span></li><li><code>_wppa_admin()</code><br><span class="qm-info qm-supplemental">wp-content/plugins/wp-photo-album-plus/wppa-admin.php:317</span></li><li><code>wppa_admin()</code><br><span class="qm-info qm-supplemental">wp-includes/class-wp-hook.php:324</span></li><li><code>do_action('toplevel_page_wppa_admin_menu')</code><br><span class="qm-info qm-supplemental">wp-admin/admin.php:259</span></li></ol>

As best I can tell, the album is encrypted.