支付排障三步

Zhīfù shībài shí, xiān kàn wǎngluò, zài qīng huǎncún, zuìhòu cái chóngzhuāng yìngyòng. Dà duōshù wèntí zài qián liǎng bù jiù néng jiějué.

When payment fails, check network, then clear cache, and reinstall only last. Most issues clear in the first two steps.