Problem rozwiązany. Zbyt wiele zmian w stopce globalTemplate powodowały problem z pojawianiem się okienka logowania.
Zmiana całości od <!-- ::: FOOTER (Change skin, language, mark as read, etc) ::: --> na poniższy kod pomogła:
<!-- ::: FOOTER (Change skin, language, mark as read, etc) ::: -->
<div id='footer_utilities' class='main_width clearfix clear'>
<a rel="nofollow" href='#top' id='backtotop' title='{$this->lang->words['go_to_top']}'><img src='{$this->settings['img_url']}/top.png' alt='' /></a>
<ul class='ipsList_inline left'>
<li>
<img src='{$this->settings['img_url']}/feed.png' alt='{$this->lang->words['rss_feed']}' id='rss_feed' class='clickable' />
</li>
<if test="skinchangerOuter:|: ! $this->member->is_not_human">
<if test="uagentlocked:|:$this->memberData['userAgentLocked'] AND ! $this->memberData['userAgentBypass']">
<li id='useragent_msg'>
{$this->lang->words['skin_browser_set']} <a href='#' data-clicklaunch='changeSkin' data-skinid='unlockUserAgent'>{$this->lang->words['override_browser_theme']}</a>
</li>
<else />
<if test="isTouchDevice:|:$this->registry->output->isTouchDevice()">
<li>
<a href='#' data-clicklaunch='changeSkin' data-skinid='setAsMobile'>{$this->lang->words['set_mobile_theme']}</a>
</li>
</if>
<if test="skinchangerInner:|:count($footer_items['skin_chooser']) > 1">
<li>
<a rel="nofollow" id='new_skin' href='#'>{$this->lang->words['change_theme']}</a>
<ul id='new_skin_menucontent' class='ipbmenu_content with_checks' style='display: none'>
<foreach loop="$footer_items['skin_chooser'] as $skin">
<li <if test="$skin['selected']">class='selected'</if>>
<a href='#' data-clicklaunch='changeSkin' data-skinid='{$skin['id']}'>{$skin['title']}</a>
</li>
</foreach>
</ul>
</li>
</if>
</if>
</if>
<if test="langchooser:|: ! $this->member->is_not_human && count( $footer_items['lang_chooser']['options'] ) > 1">
<li>
<a rel="nofollow" href='#' id='new_language'>{$footer_items['lang_chooser']['default']}</a>
<ul id='new_language_menucontent' class='ipbmenu_content with_checks' style='display: none'>
<foreach loop="$footer_items['lang_chooser']['options'] as $lang">
<li <if test="$lang['selected']">class='selected'</if>>
<a href="{$this->lang->changeLanguageUrl( $lang['id'] )}">{$lang['title']}</a>
</li>
</foreach>
</ul>
</li>
</if>
<if test="markRead:|: ( ! $this->member->is_not_human ) && ( $this->memberData['member_id'] || $this->settings['topic_marking_guests'] )">
<li>
<a rel="nofollow" id='mark_all_read' href="{parse url="app=forums&module=forums§ion=markasread&marktype=all&k={$this->member->form_hash}" base="public"}" title='{$this->lang->words['mark_all_as_read']}'>{$this->lang->words['mark_board_as_read']}</a>
<ul id='mark_all_read_menucontent' class='ipbmenu_content' style='display: none'>
<foreach loop="$footer_items['mark_read_apps'] as $app => $appData">
<li>
<if test="hideRcForPerms:|:$this->memberData['showReportCenter'] OR $app != 'core'">
<a href="{parse url="app=forums&module=forums§ion=markasread&marktype=app&markApp={$app}&k={$this->member->form_hash}" base="public"}"><if test="isCoreRC:|:$app=='core'">{$this->lang->words['markread_rc_link']}<else />{IPSLib::getAppTitle($app)}</if></a>
</if>
</li>
</foreach>
<li>
<a href="{parse url="app=forums&module=forums§ion=markasread&marktype=all&k={$this->member->form_hash}" base="public"}"><strong>{$this->lang->words['mark_all_as_read']}</strong></a>
</li>
</ul>
</li>
</if>
<li>
<a href="{parse url="app=core&module=help" base="public"}" title='{$this->lang->words['view_help']}' rel="help" accesskey='6'>{$this->lang->words['sj_help']}</a>
</li>
</ul>
{$footer_items['copyright']}
</div>
<if test="showdebuglevel:|:$this->memberData['member_id'] and $this->settings['debug_level']">
<div id='ipsDebug_footer'>
<strong>{$this->lang->words['time_now']}</strong> {$footer_items['time']}
<if test="lastvisit:|:$this->memberData['member_id'] AND $this->memberData['last_visit']"><strong>{$this->lang->words['you_last_visit']}</strong> {parse date="$this->memberData['last_visit']" format="short"}</if>
<strong>{$this->lang->words['stat_exec']}</strong> {$stats['ex_time']} <if test="isfloat:|:is_float($stats['ex_time'])">{$this->lang->words['stats_sec']}</if>
<strong>{$this->lang->words['stat_load']}</strong> {$stats['server_load']}
<strong>{$this->lang->words['stat_queries']}</strong> {$stats['queries']} <if test="sqldebuglink:|:IPS_SQL_DEBUG_MODE"><a href='{parse url="{$this->settings['query_string_safe']}&debug=1" base="public"}'></if>{$this->lang->words['stats_queries']}<if test="closesqldebuglink:|:IPS_SQL_DEBUG_MODE"></a></if>
<strong>{$this->lang->words['stat_gzip']}</strong> {$stats['gzip_status']}
</div>
</if>
{$stats['task']}
<if test="includeLightboxDoReal:|:$this->settings['do_include_lightbox_real']">
{parse template="include_lightbox_real" group="global" params=""}
<else />
<script type="text/javascript">
ipb.global.lightBoxIsOff();
</script>
</if>
<if test="!$this->memberData['member_id']">
{parse template="inlineLogin" group="global" params=""}
</if>
</div>
<!--DEBUG_STATS-->
<script type='text/javascript'>
if( $('primary_nav') ){ ipb.global.activateMainMenu(); }
</script>
<if test="vigLinkEnabled:|:$this->settings['viglink_enabled'] and ( !$this->settings['viglink_groups'] or IPSMember::isInGroup( $this->memberData, explode( ',', $this->settings['viglink_groups'] ) ) )">
<script type="text/javascript">
var vglnk = { api_url: '//api.viglink.com/api',
key: '{$this->settings['viglink_api_key']}'<if test="$this->settings['viglink_subid']">,
sub_id: '{$this->settings['sub_id']}'
</if>
};
(function(d, t) {
var s = d.createElement(t); s.type = 'text/javascript'; s.async = true;
s.src = ('https:' == document.location.protocol ? vglnk.api_url :
'//cdn.viglink.com/api') + '/vglnk.js';
var r = d.getElementsByTagName(t)[0]; r.parentNode.insertBefore(s, r);
}(document, 'script'));
</script>
</if> </body>
</html>
Szukałem problemu w zupełnie innych bitach, lecz doszedłem metodą prób i błędów, że to musi być w globalnym szablonie. Dziękuję za chęci okazania pomocy. Można zamknąć.
Gangst3r odpowiedź w Driver Error - There appears to be an error with the database. został oznaczony jako odpowiedź