HiĀ simoalien,
Thanks for contacting us. It looks like there's a folder permission issue. Make sure these folders are re-writable:
/administrator/components
/administrator/language/en-GB
/administrator/modules
/cache
/components
/language/en-GB
/media
/modules
/plugins
/plugins/system
/templates
If its still not working, please send us a temporary login to our support email
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Let us know if you have further questions.
Best,
John Mark C.
Mobile Joomla! Support