Receive warning error after installation on dashboard.

When i install your I receive following warning on my dashboard.

Warning: Illegal string offset ‘domain’ in /home/vista/maplesotre.vista.net.pk/wp-includes/l10n.php on line 515

Warning: Illegal string offset ‘context’ in /home/vista/maplesotre.vista.net.pk/wp-includes/l10n.php on line 518

Warning: Illegal string offset ‘singular’ in /home/vista/maplesotre.vista.net.pk/wp-includes/l10n.php on line 521

Warning: Illegal string offset ‘plural’ in /home/vista/maplesotre.vista.net.pk/wp-includes/l10n.php on line 521

Tell me how to solve this issue

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