Zac visual bug and cant buy warmog

I just bought zac so i wanted to try out a few builds and different ganking angles, but when i used several habilities at once this happened:[slayer-pantheon-popcorn] https://drive.google.com/file/d/1X-eQDO_aSTnzXw0lEkM4gyugTK-mWGor/view?usp=sharing https://drive.google.com/file/d/1DEaWxy1UfPvusLdOgIF9kJWSl-22m8Sg/view?usp=sharing

Also i couldnt buy warmog in this game*[sg-janna]* https://drive.google.com/file/d/1n7B9Df2PpX_qhmokUpxrWE_4sUAzXSd9/view?usp=sharing https://drive.google.com/file/d/1FhNRJE38MSKiRotMQro64OwaxU2JtGU2/view?usp=sharing