As we already discussed, your script is trying to open several files/Directories within the public_html directory, but the http server needs write permission on those files/Directories for creating/editing/deleting files/directories.

For example :

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The first error from the script.

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Warning: fopen(–B÷ڑ”-—mد™ّ´ ضipْZxVO2خ£ )^DWجضضA7€Yê½N¯tçتلثضت1¼n¤ yw ،ة8 2xج•يàط-™W²ŒMƒ7×|?àَ& ³ط -è¸دٍMq¾kت3¤ £Ly): failed to open stream: Permission denied in [path]/arcade/functions/tar.php on line 395
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We have checked the line 395 in the php file arcade/functions/tar.php and found following statement.

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if ( $FH = fopen($file_name, "wb") )
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In that line, your script is trying to open a file, whose name is assigned in the variable $file_name, but since the file does not have write permission, script is showing error. We have checked the php script file but not found the variable assignment statement for the variable $file_name, so we are not able find the exact file that your script is trying to open. This is the case for all the errors in your script.
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Please contact your developer and get the exact location for all the files/directories that the script is trying to create/edit/delete, so that we can give sufficient permission for those files/directories.

Please verify from your end and let us know if you have further queries regarding this matter.