A pair of extremely prominent YouTube (GOOGL) - Get Report influencers on Friday were set to launch their long-awaited makeup line over Shopify (SHOP) - Get Report -- and according to a number of tweets, their plan hit a wall as the e-commerce provider's technology collapsed on their site under the demand from customers.

Jeffree Star and Shane Dawson had created the Conspiracy line of eyeshadow, lipstick and accessories. Here's responses from the creators:

Shopify couldn't immediately be reached for comment.

The Ottawa company's shares were up 1% at $316.76 in trading Friday. The stock is down 23% since it hit a 52-week high above $409 late in August.

Shopify was previously a holding in Jim Cramer's Action Alerts PLUS. During his September members-only conference call, he explained why he exited the position on the stock's near parabolic move higher. He was just following Rule No. 3 of his '5 Rules for Today's Stock Market.'

Here are some tweets from irate customers who failed to see their purchases go through: