UnionPay payment Message format error 5100030

I downloaded a demo of the payment interface from the official UnionPay website. The message format is incorrect. I do not know where it is wrong. Do you have any idea? This is a log File: 2016-03-3016: 24: 06, INFO,: 1, File [D: wampwampwwwupacp_demo_b2bsdksecureUtil.php], L...

I downloaded a demo of the payment interface from the official UnionPay website. The message format is incorrect. I do not know where it is wrong. Do you have any idea?

This is a log file:

16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [16] ------ ===== signature message start ======
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [22] ------ signature key = val &... string> accessType = 0 & backUrl = http: // 115.28.88.181/upacp_demo_ B2B/demo...
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [25] ------ summary sha1x16> Summary
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [32] ------ signature string> signature/2/lw.zfwjtrwl6ujnlsdxosmr/w3B2nAzLRmo2mb/Signature/mad49Xcur6W18Vlc5rP/dvXR3lhYU/Signature + Signature =
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [37] ------ ===== signature message end ======
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ acp_service.php], Line [154] ------ automatically jump to html>

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I downloaded a demo of the payment interface from the official UnionPay website. The message format is incorrect. I do not know where it is wrong. Do you have any idea?

This is a log file:

16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [16] ------ ===== signature message start ======
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [22] ------ signature key = val &... string> accessType = 0 & backUrl = http: // 115.28.88.181/upacp_demo_ B2B/demo...
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [25] ------ summary sha1x16> Summary
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [32] ------ signature string> signature/2/lw.zfwjtrwl6ujnlsdxosmr/w3B2nAzLRmo2mb/Signature/mad49Xcur6W18Vlc5rP/dvXR3lhYU/Signature + Signature =
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ secureUtil. php], Line [37] ------ ===== signature message end ======
16:24:06, INFO,: 1, File [D: \ wamp \ www \ upacp_demo_ B2B \ sdk \ acp_service.php], Line [154] ------ automatically jump to html>