Parse error: syntax error, unexpected T_VARIABLE

Hello,

I am getting this message:
Parse error: syntax error, unexpected T_VARIABLE in ....public_html/catalog/language/slovak/total/sub_total.php on line 1

This message appears after clicking from OpenCart Administration on "Store Front". I checked the link for the error but I can't find it. This error appeared after I installed the new language file. I checked also for its English file version and both are identical. I can't see where is the mistake. When I view my website on the net, it is viewed correctly, but from the administration I can't view it.
Could you please help me if you know what is incorrect?
Thank you.

Include a link to your store to see if the error occurs when we view your site.
Sometimes if I edited a file directly from the ftp client, when I saved it, it moved all the code in the file to the first line so thats why the error occured to me when I didnt change something that could generate an error. Do you think it could be the same case to you?

Hello florinsith,
You were right, the code moved to the first line itself. This created problem where all the translated words didn't show correctly. The translation looked like e.g.: text_message, text_cart instead of translated words. I corrected the files as you suggested and now it is ok. But the Parse error still exists for three of those files. It's total.php, sub_total.php and credit.php. These three files look correct inside. Their content isn't in the first line. I don't know.
The link is http://www.bioaorganic.com.
Thank you & Regards,

Please post the code of atleast one of those files.

I again checked the encoding for those two files and for some reason they were set as ANSI. So, I converted them to UTF-8 without BOM and it corrected the problem. It is ok now.

Thank you very much for your support!

I just upgraded to version 2.3.0.2 from 1.5.6.4 and getting this error on the Admin side

Parse error: syntax error, unexpected '$this' (T_VARIABLE) in /home/www/mystore.com/admin/model/localisation/language.php on line 224

Line 224 reads like this: $this->db->query("DELETE FROM " . DB_PREFIX . "category_description WHERE language_id = '" . (int)$language_id . "'");

I deleted the Spanish language files as well as the US-English
Can any tell me why am I getting this?
It's also happening when I try to go into the settings.

And which is the line before that one?