Installation porblem with 000webhost

Guys during uploading my wordpress installation file in public-html in filezilla, i get many messages to overwrite existing file..or overwrite is new source, resume or skip. I get this message around 3-4 time during my uploading to filazilla. I mean my uploading of wordpress installation files on filezilla is not going smooth as it has been for others.

And when i open “http://goplayvolley.comli.com/wp-admin/install.php” which is my site..I get this message on screen

PHP error message
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 30720 bytes) in /home/a4806667/public_html/wp-includes/locale.php on line 113

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I have trying to sort this out from 2-3 days but no relief.

Please tell me what to do.