Dual-supply to Single-supply op-amp conversion
Figure 1. Internals of the ancient 741 opamp. Source: Wikipedia.
From the internal schematic of the 741 op-amp it should be clear that the output can source current from the \$ V_{S+} \$ rail via Q14 or sink current to the \$ V_{S-} \$ rail via Q20.
It is not possible to generate an output voltage higher than the postive supply pin or more negative than the negative supply pin. This means that when the input to your first stage voltage follower goes negative the op-amp can't follow it and it clips at zero volts. To fix this you need to either:

Use a dual supply.
Use a decoupling capacitor on the input and bias the input to op-amp 1 to half-supply. This is the technique used on most 9 V guitar effects pedals.

It appears that you might be trying to apply a bias with R1 and R2 but it's too late. If you fix the input problem you can remove them.
R5 is redundant and may be removed.
If you fix the input to bias it to half-supply there will be a DC bias on the output so you'll need a decoupling (DC-blocking) capacitor there too.