Login 500 ошибка

[[!Register?
    &submitVar=`submitbtn`
    &usergroups=`Users`
    &activation=`0`
    &usernameField=`email`
    &passwordField=`email`
    &submittedResourceId=`1503`
    &placeholderPrefix=`reg.`
]]

<form action="[[~[[*id]]]]" method="post">
	        <input type="email" name="email" id="email" class="news" placeholder="E-mail">
	        <input type="submit" value="Подписаться на новости" name="submitbtn" id="submitbtn" class="btn">
	        <span class="help-block text-error">
                [[!+reg.error.email]]
            </span>  
	    </form>

[2017-10-24 09:57:41] (ERROR @ /home/i/itpizzo1/new.birdsandbees.ru/public_html/core/xpdo/xpdo.class.php : 644) Could not load class: tickets from tickets.
[2017-10-24 09:57:41] (ERROR @ /home/i/itpizzo1/new.birdsandbees.ru/public_html/core/xpdo/xpdo.class.php : 1247) Problem getting service tickets, instance of class tickets, from path 
[2017-10-24 09:57:51] (ERROR @ /home/i/itpizzo1/new.birdsandbees.ru/public_html/core/xpdo/xpdo.class.php : 1826) No foreign key definition for parentClass: modUser using relation alias: AuthorProfile
[2017-10-24 09:57:51] (ERROR @ /home/i/itpizzo1/new.birdsandbees.ru/public_html/core/xpdo/xpdo.class.php : 644) Could not load class: TicketAuthor from mysql.ticketauthor.
[2017-10-24 09:57:55] (ERROR @ /home/i/itpizzo1/new.birdsandbees.ru/public_html/core/xpdo/xpdo.class.php : 644) Could not load class: tickets from tickets.
[2017-10-24 09:57:55] (ERROR @ /home/i/itpizzo1/new.birdsandbees.ru/public_html/core/xpdo/xpdo.class.php : 1247) Problem getting service tickets, instance of class tickets, from path