Ошибки после перехода на другой хостинг

[Evgen2sat]

Здравствуйте. Мой хостинг провайдер переехал в другой офис и после этого начали возникать ошибки на сайте. При переходе в каталог или на страницу товара выскакивают ошибки типа:

Warning: session_start() [function.session-start]: open(/tmp/sess_7e76c6eb88bec9e58dda68e88cfb21ed, O_RDWR) failed: Permission denied (13) in /home/u664294082/public_html/system/library/session.php on line 11
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/u664294082/public_html/index.php:104) in /home/u664294082/public_html/system/library/session.php on line 11
Warning: unlink(/home/u664294082/public_html/system/cache/cache.category.seopath.1392793575) [function.unlink]: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 45
Warning: fopen(/home/u664294082/public_html/system/cache/cache.category.seopath.1392794138) [function.fopen]: failed to open stream: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 32
Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 34
Warning: fclose() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 36
Warning: unlink(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.6bb77419172f10fa3c01c2d813e50198.1392794127) [function.unlink]: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 45Warning: fopen(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.6bb77419172f10fa3c01c2d813e50198.1392794138) [function.fopen]: failed to open stream: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 32
Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 34
Warning: fclose() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 36
Warning: unlink(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.56da63b38ee0013deb12e9cfe15d7b73.1392794127) [function.unlink]: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 45
Warning: fopen(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.56da63b38ee0013deb12e9cfe15d7b73.1392794138) [function.fopen]: failed to open stream: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 32
Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 34
Warning: fclose() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 36
Warning: unlink(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.0b4004aefdde3be66d044f0da7fa8c60.1392794127) [function.unlink]: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 45Warning: fopen(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.0b4004aefdde3be66d044f0da7fa8c60.1392794138) [function.fopen]: failed to open stream: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 32
Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 34
Warning: fclose() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 36
Warning: unlink(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.6f39ad71221c7e2045e3a3e838c09fd1.1392794127) [function.unlink]: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 45
Warning: fopen(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.6f39ad71221c7e2045e3a3e838c09fd1.1392794138) [function.fopen]: failed to open stream: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 32
Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 34
Warning: fclose() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 36
Warning: unlink(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.a0f0c0ba96f7bdf33299f18c68b8123c.1392794127) [function.unlink]: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 45
Warning: fopen(/home/u664294082/public_html/system/cache/cache.product.total.1.0.1.a0f0c0ba96f7bdf33299f18c68b8123c.1392794138) [function.fopen]: failed to open stream: Permission denied in /home/u664294082/public_html/system/library/cache.php on line 32
Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 34
Warning: fclose() expects parameter 1 to be resource, boolean given in /home/u664294082/public_html/system/library/cache.php on line 36

Сам я ничего не менял и это случилось после того как хостинг провайдер сообщил что переезжает в новый офис. Помогите разобраться в ем проблема и как ее исправить.