WampServer

I get this error after installing open fit Fatal error: Class 'NumberFormatter' not found in C:\wamp\www\openfit7.x1.1\sites\all\modules\openfit_api\openfit_api.Measurement.inc on line 188. I also get these other errors... Warning: preg_replace(): Compilation failed: disallowed Unicode code point (>= 0xd800 && <= 0xdfff) at offset 2102 in search_simplify() (line 445 of C:
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