Ошибка при предпросмотре комментария

При предпросмотре комментария аякс отдает 500 ошибку.
Ответ техподдержки хостинга:

Если мы правильно понимаем, на этом моде падает? -
http://bezumkin.ru/modx/tickets/ 
Он судя по всему в статусе беты
По данному вопросу следует обратиться к разработчику.

Переключать версии php пробовал - результат такой-же.
strace такой:
stat("/var/www/u5111873/data/www/saint-elisabeth.ru/core/xpdo/validation/xpdovalidator.class.php",
{st_mode=S_IFREG|0644, st_size=13363, ...}) = 0
munmap(0x7f6596254000, 13363) = 0
lseek(5, -4096, SEEK_CUR) = 0
close(5) = 0
munmap(0x7f6596253000, 4096) = 0
access("/var/www/u5111873/data/www/saint-elisabeth.ru/core/model/modx/validation/modvalidator.class.
php",
F_OK) = 0
open("/var/www/u5111873/data/www/saint-elisabeth.ru/core/model/modx/validation/modvalidator.class.ph
p",
O_RDONLY) = 5
fstat(5, {st_mode=S_IFREG|0644, st_size=941, ...}) = 0
fstat(5, {st_mode=S_IFREG|0644, st_size=941, ...}) = 0
fstat(5, {st_mode=S_IFREG|0644, st_size=941, ...}) = 0
mmap(NULL, 941, PROT_READ, MAP_SHARED, 5, 0) = 0x7f6596257000
open("/var/www/u5111873/data/www/saint-elisabeth.ru/core/model/modx/validation/modvalidator.class.ph
p",
O_RDONLY) = 6
fstat(6, {st_mode=S_IFREG|0644, st_size=941, ...}) = 0
mmap(NULL, 941, PROT_READ, MAP_SHARED, 6, 0) = 0x7f6596256000
munmap(0x7f6596256000, 941) = 0
close(6) = 0
fcntl(5, F_GETFL) = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fstat(5, {st_mode=S_IFREG|0644, st_size=941, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f6596256000
lseek(5, 0, SEEK_CUR) = 0
lseek(5, 0, SEEK_SET) = 0
read(5, "<?php\n/**\n * @package modx\n * @s"..., 4096) = 941
lseek(5, 941, SEEK_SET) = 941
stat("/var/www/u5111873/data/www/saint-elisabeth.ru/core/model/modx/validation/modvalidator.class.ph
p",
{st_mode=S_IFREG|0644, st_size=941, ...}) = 0
munmap(0x7f6596257000, 941) = 0
lseek(5, -941, SEEK_CUR) = 0
close(5) = 0
munmap(0x7f6596256000, 4096) = 0
poll([{fd=4, events=POLLIN|POLLPRI}], 1, 0) = 0 (Timeout)
write(4, "\216\0\0\0\3INSERT INTO `modx_session` "..., 146) = 146
read(4, "\7\0\0\1\0\1\0\2\0\0\0", 16384) = 11
write(3, "\1\6\0\1\1U\3\0Status: 404 Not Found\r\nX"..., 360) = 360
write(3, "<!DOCTYPE html>\n<html lang=\"ru\">"..., 17520) = 17520
write(3, "\1\6\0\1\0\1\7\0>\0\0\0\0\0\0\0", 16) = 16
chdir("/var/www/php-bin/u5111873") = 0
rt_sigaction(SIGSEGV, {SIG_DFL, [SEGV], SA_RESTORER|SA_RESTART, 0x3eb8032920},
{0x7f659ad0fa30, [SEGV], SA_RESTORER|SA_RESTART, 0x3eb8032920}, 8) = 0
rt_sigaction(SIGFPE, {SIG_DFL, [FPE], SA_RESTORER|SA_RESTART, 0x3eb8032920},
{0x7f659ad0fa30, [FPE], SA_RESTORER|SA_RESTART, 0x3eb8032920}, 8) = 0
rt_sigaction(SIGBUS, {SIG_DFL, [BUS], SA_RESTORER|SA_RESTART, 0x3eb8032920},
{0x7f659ad0fa30, [BUS], SA_RESTORER|SA_RESTART, 0x3eb8032920}, 8) = 0
rt_sigaction(SIGILL, {SIG_DFL, [ILL], SA_RESTORER|SA_RESTART, 0x3eb8032920},
{0x7f659ad0fa30, [ILL], SA_RESTORER|SA_RESTART, 0x3eb8032920}, 8) = 0
rt_sigaction(SIGABRT, {SIG_DFL, [ABRT], SA_RESTORER|SA_RESTART, 0x3eb8032920},
{0x7f659ad0fa30, [ABRT], SA_RESTORER|SA_RESTART, 0x3eb8032920}, 8) = 0
umask(022) = 022
write(4, "\1\0\0\0\1", 5) = 5
shutdown(4, 2 /* send and receive */) = 0
close(4) = 0
write(3, "\1\3\0\1\0\10\0\0\0\0\0\0\0\0\0\0", 16) = 16
shutdown(3, 1 /* send */) = 0
recvfrom(3, "\1\5\0\1\0\0\0\0", 8, 0, NULL, NULL) = 8
recvfrom(3, "", 8, 0, NULL, NULL) = 0
close(3) = 0
setitimer(ITIMER_PROF, {it_interval={0, 0}, it_value={0, 0}}, NULL) = 0
accept(0, ^C <unfinished ...>