With version 4.5 of CEON and Zen Cart 1.5.4, I'm seeing the following errors when copying a product. When can be done?

[27-Feb-2016 13:24:53] PHP Strict Standards: Non-static method String::regexpReplace() should not be called statically, assuming $this from incompatible context in /var/www/vhosts/learnhomeopathynow.com/httpdocs/shop/includes/classes/class.CeonURIMappingAdmin.php on line 561
[27-Feb-2016 13:24:53] PHP Strict Standards: Non-static method String::convertCharset() should not be called statically, assuming $this from incompatible context in /var/www/vhosts/learnhomeopathynow.com/httpdocs/shop/includes/classes/class.String.php on line 879
[27-Feb-2016 13:24:53] PHP Strict Standards: Non-static method String::toLowercase() should not be called statically, assuming $this from incompatible context in /var/www/vhosts/learnhomeopathynow.com/httpdocs/shop/includes/classes/class.String.php on line 112
[27-Feb-2016 13:24:53] PHP Strict Standards: Non-static method String::toLowercase() should not be called statically, assuming $this from incompatible context in /var/www/vhosts/learnhomeopathynow.com/httpdocs/shop/includes/classes/class.String.php on line 113
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